Basically, if a screen supports HDCP, then you can HDMI->DVI connect this thing. Best option is to get HDMI cable with a HDMI->DVI converter imho, as you can still also easily use that as an HDMI cable for an LCD tv (it's what I use).
As for the max resolution, that's tricky. I was able to run 1920x1080 on my Samsung 225BW (this Viewsonic looks like it may have a 226BW panel?), but it does show a 'non-optimal resolution' message that you have to click away using a button on the display. You can set the message to transparent, but it can still be annoying. It looks awesome though!
You won't really know how it turns out until someone has tried, really, so you'll have to look around for someone who's tested it, or ask if you can test it yourself (I know someone here just brought his PS3 to a store to test).