The XBA architecture should be suited for the handheld segment.
If BB manage to reduce off-chip mem. acc. with the XBA architecture,
power consumption will decrease significantly.
The handheld segment is growing rapidly. Most industry analysts agrees that
mobile gaming is the driving factor (Datamonitor estimates 200 million mobile
gamers in Europe in 2006). If these gamers will play SMS / txt based
games or stunning 3D graphics games is yet to be determined.
Another possibility is that BB targets Set-top-box segments or mobile computers
Both segments grows rapidly and could benefit from more powerful
DirectX 8 graphics solutions. (Xabre)
Infineon has many customers in the handheld segments / STB (?). They also
announced this:
http://www.infineon.com/news/press/206_113e.htm today
Either way, leaving the PC industry is a good strategic decision for BB. The market
situation together with the increasing complexity of the chips makes it hard
for a small company to enter.
There are more to 3D graphics than high-end gaming.