Well I just got mine last week (before the $10 discount, bah!). I can tell you that I definitely love this thing, beats my i730 hands down (certainly no PDA). As for your questions, yes it comes with 4.0 OS. As for a browser, the one that came on mine sucked and only allowed me through Nextel's portals to web sites. I downloaded ReqViewer as a full html browser since Blackberry support told me I needed to purchase BES in order to get a full web browser. I have not actually tried to text message anyone, but I use the e-mail all the time and I love it. I have also not tried using the web client with my AOL mail, but maybe I'll try that a little later and see how it works. Other than that, it is a great little phone and I am loving it.