The HP 2133 is using the VIA C7-M, it's not the fastest out there, but it has longer run time than the Celeron-M. Unfortunately, running Vista as default OS is probably the only thing that makes it a deal breaker.
The Atom is slower than the Celeron-M 900Mhz, as the synthetic benchmark is only single threaded. The Atom should excel when in multi-threaded enviroment (Vista). On the other hand, VIA's Isaiah CPU is already killing the Atom and Celeron-M. HP should probably be using it on the next Mini-Note.
If I am going to get one of these UMPC, I will pick the HP one.
Philip |