Why do you believe it's important to "express oneself adequately and freely", and imply this is only done with an open and 3D world? I still don't see how this is the way to go, it just doesn't make any sense -- it adds a lot of friction to what should be quick and dirty tasks (communicating with friends). When I want to talk to my friends, I want to quickly get ahold of them and not have to suffer through loading screens and fumbling around in an interface so our 3D avatars get placed next to eachother and we can just talk normally anyway.
Self expression ? It's one of the underlying drivers for a vibrant community. Services like media sharing wouldn't intrigue people if they don't feel the need to express themselves to begin with. The other important dynamics is finding like-minded people.
I have a broader definition of Home's UI. I don't think it has to be strictly 3D (since you can embed HTML surfaces, and overlay 2D panels over it). But the 3D portion allows the devs and users to provide more hints for other like-minded people to find them. I think Home still need some sort of people search services though.
Finally, the openness will provide more numbers to the platform. If I were Sony, I'd open up Home so that whatever was contributed in Home can be exported to the net (to hook people back). That's assuming users can submit content and LUA scripts to customize the environment.
I want to be able to see a quick list of which friends are online and then from there initiate a chat (voice or video) virtually instantenously. Whether they're in a game or not. This is the "holy grail" of social gaming with friends, the ubiquity of the service and the lack of frustration and hoops to jump through to use it. Sony needs to differentiate themselves so they're taking this other, more flashy way to do it and the response has been overwhelmingly negative. And we really should all know why that is -- it's just not a terribly good idea for most gamers. Even if they finally get the UI right, it'll be far more clunky and far more frustrating to use than a simple invite/menu system ubiquitous across all games and services on the console. And what is the payoff for all over this overhead? Pretty virtual landscapes (that get old fast) so our characters can sit there and do the odd weirdly-animated hand gesture while we talk? The payoff isn't worth the cost here.
The ubiquitous access to communication tools is indeed extremely important for maintaining existing relationships. A quick party management facility in XMB is also important for no frill users. I don't think they are mutually exclusive to Home (Home addresses the problem of "making new friends; growing the community" better). No idea how Sony is going to address the unified communication tool problem.
What Sony wants to do in Home is not wrong/bad. Athough it's not addressing the above utilitarian needs, it can provide a viable vision/platform for Sony to consolidate all its services together. From early indication, people are willing to spend in Home. I think it is an important avenue to keep PSN free as the service scales.
Home is going to appeal to a niche audience and, despite claims to the country, it is the same niche audience that plays Second Life. It's too heavy and obtrusive for "gamers" to use, and there's no real advantages to it. The closest thing I've heard to being advantageous to gamers is the idea of hosting pre-game lobbies inside of Home (which is ridiculous given the loading times it'd require). The only real use for Home is for people who love the idea of virtual 3D worlds to chat with (think Second Life) and for companies who want to use the opportunity for advertising (Red Bull, EA, etc).
Home appeals to the niche chatter audience today (although they can grow some more here due to earlier missteps). Home can appeal to more people if Sony plays its cards right. What's valueable in Home is the user community and the way services integrate together in a unified environment. The 3D interface uses XML-based Internet calls to invoke backend services. They can easily do a 2D interface if they want to.
Sony has dramatically missed the boat on this one. There's even an allusion to the idea that the "naysayers" just don't see the potential to the service in the changelogs, which to me reinforces just how delusional the people behind Home have become. They need to focus on what people want from the service, not what they think would be cool in a virtual world. They're clearly not the same things.
No idea whether they are delusional. They had $1 million sales in 1 week. They can evolve the service based on user feedback. If people really hated the 3D interface, they can add a 2D one upon request.
The operational problems now are (i) the communication between the users and Sony is a bit broken. They are learning pretty slowly to change this; (ii) the Home team cannot deliver fast enough.
For (i), Locust_Star's post above is an attempt to smooth the communication. Originally they tried to throw whatever they could complete first over the wall to the users. That angered the community because they didn't know where Home is heading. In general, people felt like mushrooms (kept in the dark, fed sh*t). I see Sony fumbling more, but in the process hopefully they also find opportunities to calibrate themselves to the users' overall needs. They need to package/schedule their deliverables properly to maximize the mileage for each phase. Perhaps if they (or another team) are going to address the unified communication need, then they should say something soon.
For (ii), I'd just enable user-generated content in a closed Home area (e.g., the private spaces); and evolve from there.