Very nice indeed. My only major problem with mobile games is the controls, and this is even more important with 3D games. Good controls are vital to a good game in my opinion, and it is very hard to achieve an intuitive control system for complex games with mobile phone devices. So it’s all well and good advancing the graphics technology, but whats really needed now is for some interface advancements to complement it.
Having said that though, the demos on the site do look impressive.