I dunno really, but shes been managing from her blackberry, but it doesnt have the google apps stuff, that ive seen anyway...
My personal preference would be to not have one at all. I dont really want to look like a market researcher / Maître d at a fancy restaurant.
Ive mentioned the possibility of upgrading her Wind to be a touch screen, which might be useful, and a tenth of the price!
Most of their forms etc are going online for printing out. Ive seen the wife using the new system, however its designed with cost and usability in mind. I doubt youre going to have much scope for anything that cant run Office and PDF documents natively. Last weekend a group of 2000 of the little Stromtroopers was handled with printouts and paper registers printed by each unit.
You still have to print out all the forms etc for the parents to sign, its why I bought a laser printer. Herself was chewing through a set of ink cars a month, and couldnt put claims in for them all. These days they buy a toner cart every 6 months for £40, and I buy the one in between.