The real question is whether the processor and an extended battery are worth the premium. If you can get a Q1U-V for 650-750, you can upgrade the ram for $50.00. That leaves the only noticeable difference between same and this "new" model as the lack of extended battery and the processor.
I am currently in debate mode about buying the Q1U-V and either adding ram or XP ... or buying the Q1UP (xp version). With the only differences being the processor, operating system and battery, with the large price difference, I am struggling to decide.