I have 4.2.1 working fine so now I want a new printer. I should be able to get a good deal on Black Friday. So anyway I want an eprinter that I can print from the iPad. I went to HP's site and looked a three of theirs, the E710n, C310a and the C410a. I would like to keep the cost below $200 is possible. I have a PC with windows 7. I also have the Apple Airport Extreme Base Station. I think that Airport Extreme let's you connect your printer to it but I don't know how that works. That's why I just thought that I would get an eprinter. Does anyone have a good suggestion?