Update #2 (10/15): Microsoft has announced they have been able to recover almost all user data from the Sidekick cloud servers. It had been suggested this data could have been destroyed and thus become unrecoverable, but apparently the potential disaster has been contained to cause a minimal damage, besides the service interruptions Sidekick users have been suffering in the last couple of weeks. Here's an excerpt from Microsoft's official statement:

Read the whole story

This is a slap in the face to sidekick users. I have been with Tmobile for around 10 years, since they were aerial and voicestream. I lost over 250 business contacts, leads, and friends from college. Them giving me a $100 gift card to spend on them, the people who are responsible for the loss of my data to begin with, is laughable. I am attempting to organize a class-action suit to have justice done. If any sidekick users want to get on board, contact the following class-action firms and tell them your story. I am sure they will be jumping at the chance to take on tmobile and microsoft.

http://www.izardnobel.com/contact.php
https://www.milberg.com/contact/reportafraud.aspx

I was banned from the tmobile forums for posting this information. Thanks for caring so much about your customers Tmobile!

T-mobile is not who you want to go after. Microsoft is the one who dropped the ball and lost the data.

I'm expecting fine print somewhere that exonerates them from such things.
Data on a portable device, you should have backed up somewhere else, pretty foolish to expect it to be infallible.
This should be your wake up call, sorry it happened, learn from it.

Well I think you have a case to sue... I dropped the hiptop years ago (and personally know the original Danger guys)... the "you should back up" line is fine, but the Sidekick didn't have a backup method... why should they... everything is backed up to those ultra-secure Danger/MS servers.

Regardless of the fine print there could be an assumption by the design that Danger/MS were taking that responsibility (maybe)... but regardless that the loss was pure negligence, and by not having a user backup system they pretty much signed on for responsibility regardless of fine print.

Yes, you have a backup method, it's called paper and pen.

I'm one of the affected people, and I have a question for you Badfinger. What about content I purchased from t-mobile that was(is?) backed up in the cloud? Pen and paper can't help with that.