Are downloads and updates from the Android Market hanging on your Android phone?
I had this problem a few weeks ago when on holiday. Notifications that updates were available for for my HTC Magic and I could access the Android Market but after being taken through the usual installation screens the download would hang immediately with the progress bar static.
I initially put this down to poor reception but when I returned home the problem continued even over my WiFi connection. I then discovered that people in the UK that had switched their google mail account from @googlemail.com to @gmail.com were experiencing the same problem. I had done this! I went immediately to my account and switched back.
As you can see from above in ‘Settings->Accounts and Import’ there is a link at the end of the ‘Send mail as:’ section which allows you to toggle between the two. I did this and the downloads began working correctly virtually instantly.
In fact switching seems to serve no purpose at all you can still receive and send emails as either gmail or googlemail no matter what your settings. Google are working on the issue but for now they recommend switching back.