While T-Mobile was the first US carrier to go live with preorders for the BlackBerry Q10 for business customers, they are just now firing up their registration page for everyone else. You still can't actually order a Q10 just yet, but you can sign up to be notified of all the happenings over the next few weeks.
The fun part, as noted on the page, is that the Q10 will be available in June (which we knew already) and that the device will run you $579.99 outright. That means thanks to T-Mo's Simple Choice plans, you can pick up a Q10 for as little at $99.99 down and $20/month for 24 months.
So if you've been scoping out a Q10 on T-Mobile you shouldn't have to wait much longer. All-in-all not a bad play if you're thinking of picking up a Q10 sans-contract.