I do not know from where it's coming the Idea of Vista sucking 30 minutes of Battery Life. When I had Vista in my Q1 without any power managment installed (from Samsung) I was getting a battery life of around 2 hours. When I had it with XP, I was getting around 2 hours and 15 minutes. Now that I installed the power managment profile that came with the Q1p Vista preinstalled I'm getting 2 hours and 10 minutes. And I have not touched anything, I just installed all Vista Drivers that came with the Q1p Vista Preinstalled. 30 minutes represent 21% of less battery life and I can tell you for sure that I have not seen that neither in my Q1 or my eo v7110. You will get less battery life but is not 20%, it's not 10% and it's not even 5%. If you ask me, if that's the price to pay for having a handwriting recognition that is a lot, and when I say a lot I mean like 5 times better than what you have experienced so far in XP, then I'll say that I'm glad to pay that price.
And I hope my dear readers that by know you know me enough to know that when I want to check something I spent my time doing my homework. I do not go by other people tests, I run my own ones.
I believe that the myth of Vista using more battery life came from the first people that installed it in their machine and did not configure properly the Power profiles. And a proof of that is that Samsung released it own power profile which is different than the Maximum Battery Life Profile of Vista.
There are people that installed Vista in a Q1 before me. But probably I'm the only one that installed and never went back to XP, I kept using Vista fighting with all drivers problems until I got it all right (even better than Samsung did because I got the real HID Driver from the maker of the Touch Screen :-))