Apple’s Worldwide Developers Conference is taking place this week, and the Cupertino firm is sure to make some headlines at its keynote tomorrow, where it’s expected that we’ll be introduced to a new version of iOS and Apple’s new streaming music service. The good news for non-Apple folk is that it looks like there’s going to be some announcements from another company as well.

A source tells TmoNews that T-Mobile’s got several announcements planned for the coming week. They’re allegedly going to be spread out across several days, so folks that don’t care for iOS will have plenty to get excited about throughout the week. Here’s the breakdown of what we’ve been told to expect:

• June 8: T-Mobile will invite more customers to a free trial of its Rhapsody UnRadio service. It’s unclear how T-Mo will select who to invite, but these lucky invitees will get a free 30-day pass to UnRadio. Once that trial is up, customers will be able to sign up to the service for $4 per month.
• June 11: A new photography-focused campaign will include a page dedicated to helping people take better photos with their phones. It’s also said that T-Mobile will kick off a photo competition, but details of that contest are still hazy.
• June 12: Customers with Unlimited 4G LTE Simple Choice plans will gain 2GB of extra mobile hotspot usage, and once they reach their limit, they’ll have their speeds throttled to 128kbps rather than be cut off completely.

It’s also said that T-Mobile may be planning some more big changes for June or July. Those may include tweaks to the Simple Global Data program that’ll let you use your mobile hotspot overseas, as well as tweaks to some legacy plans.

Clearly details on T-Mobile’s upcoming announcements are still light, but so far it sounds like there will be a good mix of plan tweaks and promos for T-Mobile consumers. And since these announcements are expected to come within the next five days, we don’t have to wait long before T-Mo spills all of the details. Stay tuned.