I've always wanted to do a setup in a truck have a tablet fill out the estimate, go back to the truck print it out right then and there on the spot... I think that'd be really cool to do that for the customer.
I like Ipad because I have one and use it all the time... I too have a dell laptop at work lol Latitude E6500 with extended battery life... I like it a lot but I bumped it the other day and the screen went hazy blue then back to noraml... dont know how a laptop would hold up on the jobsite... I've dropped my ipad before (with case) and it doesnt miss a beat