I have a non-BES T-Mobile account, and I've had no luck downloading MIDlets to my 7230.
Mark, how about starting a sticky thread for feedback from forum members who have been able to install MIDlets OTA? Each message could explain where the file is located and whether or not it ran on a particular model Blackberry. That could save us all a lot of time, as many MIDlets appear to be incompatible apart from our ability to download them or convert them to COD files.
DavidE
www.davidenglish.com