If you stuck with a T-Mobile Danger Sidekick phone after the 2009 data crash, it's probably time to shop for a new phone.

Danger data services for Tmo Sidekicks will stop working after May 31, the carrier announced tonight.

Microsoft has run the services since it acquired Danger. It's been rocky for Sidekick customers, some of whom suffered through the 2009 system crash and were compensated with $100 gift cards.

T-Mobile set up a tool on its website to help Sidekick users export personal data, such as photos, contacts, calendar items and bookmarks to a new device, a computer or an e-mail account.

The company's also going to provide special offers to Sidekick holdouts. Details about the offers will be provided in a few weeks.

I'm guessing T-Mobile is going to encourage the customers to upgrade to the new Android-based 4G Sidekick that the company's releasing this spring, if it ever comes.

Microsoft has run the Danger Sidekick services since it acquired Danger in 2008.