[citation][nom]jblack[/nom]Yes, but performance wise they will be practically the same. Acer says their table will go 6 hours on Internet Browsing and 4 hours watching HD video. What does the MSI do? And I think these are reasonable numbers...... They aren't 10 hours like an iPad, but these tablets can also do a lot more than an iPad too.[/citation]
Power drops from 9W (C-50) to 5.9W (Z-01), or basically by 1/3, which is pretty good. There's also the weight issue from the battery as well as heat buildup (9W isn't a lot but you have to think about materials that they use for thermal conduction, and their respective thickness and weight - and Acer isn't known for making systems with reliable materials....).
Between the two, I'd still rather take the MSI, knowing the (lack of) quality of Acer junk.
Overall, I'd have to say that there will likely be better brands available later. Lenovo will have a ThinkPad Windows tablet after the IdeaPad one is launched later this year. I would hope that they don't stick a lame Atom in it though. I'd like to see the equivalent of my x120e in a slate tablet.