A while back, I posted about my less-than-stellar results installing the Windows 7 Beta on a previous-generation UMPC. Well, I've just today installed the Windows 7 Beta on a current-generation Atom-based notebook, the Lenovo IdeaPad S10. And let me tell you, the experience is completely different. I'll write up something over the next week after I've used it more, but this system, which has a 1.6 GHz Atom processor and 1.5 GB RAM, handles Windows 7 somewhat effortlessly. It's really quite impressive.
Here are some before and after shots to get things rolling. Notice how Windows 7 is only a million times cleaner than the default XP Home install.
Before: Windows XP Home Edition
After: Windows 7 Beta