So my old Windows Mobile PDA is beat up and ready to be replaced--I'm still not in the smartphone market, as work won't pay for the data plan but will expect me to be connected and answering mail every waking hour if I get one. Is there any reason to buy a $300 iPod Touch over one of the $100-150 Android mini-tablets (essentially PDAs), keeping in mind that I already have an iPod to play music and it isn't in need of replacement?