I just got a Motorola Xoom, and I'm looking for some apps. I need app(s) that can allow me to edit PDF's, kinda like adobe PDF on the computer. I also need a app that will allow me to edit microsoft office formats. I need to be able to view/edit .xls, and other microsoft formats. Also, is there a app that will allow me to print on my home printer, connected to a printer? Atlas, the printer is not wireless. And for the last question, what's the best site to look up android apps online?