Following the initial apology posted online from Danger, T-Mobile USA and Microsoft concerning the data interruption suffered by Sidekick users last week, the companies went on to admit that the personal data lost may be non-recoverable. Because Sidekick devices store some of their data, including contacts, calendar entries and photos, on Microsoft servers, the data loss resulted immediately when those servers failed.

The latest news concerning this story came yesterday as T-Mobile pulled their entire lineup of Sidekick devices from both retails stores and the provider’s online shopping area. A final statement followed from T-Mobile last night, stating that the company was “hopeful” that at least some data could be recovered.

All Sidekick users on the T-Mobile network will receive one month of free data service and a $100 customer appreciation card will be offered to those whose data cannot be recovered; the gift card is usable for any T-Mobile product or service, including monthly bills.

None of the companies have yet published numbers indicating how wide-spread the data loss was. Whether this pulling of the Sidekick line from T-Mobile’s lineup is permanent also remains to be seen.