My mogul has for quite some time suffered from the same double typing symptom a few of you have already mentioned. But now, just these past few weeks, various keys have become unresponsive and the double type issue has worsened. For example, if I go to type "you" on the slide out keyboard I'll end up with "yuuuu", or just "uuuuu".

I have the most recent ROM and, as I was very interested to read may be the cause, have done a great deal of flying lately, mostly this past month.

This issue has past the point of annoying and advanced to where I now simply don't use the keyboard. I suppose I should take this up with Sprint or HTC but I would like to know more before embarking down that dark road or corporate tech support.

I have other issues with the phone as well, but most are more Windows Mobile problems or problems that phone had out of the box