If you're an HTC fan, you may want to keep your calendar open on April 12th. HTC just sent out invites for an event in London on Tuesday, April 12th, at 8:30 AM ET and, while there's no indication as to what the Taiwanese firm has in store, there's already plenty of speculation on the subject.

As some have pointed out, HTC's gathering just so happens to take place at the same time as Microsoft's 2011 MIX developer conference, so Windows Phone 7 is a possibility. There's also the chance that Android will be involved, as many think that the European EVO 3D (check out Aaron's hands-on!) or maybe even the HTC Pyramid could debut at the event. Of course, whatever HTC does have in store, you can be sure that we'll be watching the event closely and bringing you all of the news as soon as it breaks. Stay tuned, and feel free to drop your predictions about what HTC is planning down below!

Via Engadget