I downloaded 4.2 on the iPad. I spend Tuesday and part of today reading everything I could on AirPrint. Went to Compusa today during work and bought the HP B210a for $119.99 plus tax. Came home after work and took out the old printer. Installed the B210 and installed the power cord and print cartilages. Powered it up and it went thru the setup. Searched for my network and found it and put in the password and it latched on. It printed out a spec sheet to go to a web address and setup the printer. I went to the iPad and pulled up an email and hit print and that baby printed out just fine. I had the wife download the updates to her iPhone today at work. Had her pull up an email and hit print and it printed out just fine. Put the CD in the drive of my Windows 7 desktop and went thru setup on it and selected wireless connection. Pulled an email and hit print and it printed out just fine. I've read alot of threads the past 2 days and it can work well and easy. So for $120 bucks I can print from the iPad, the iPhone and my Windows 7 desktop. I'm freaking out.