Boost Mobile launching $99.99 BlackBerry Curve 9310 and $45 BBM Unlimited plan next month

This morning, Sprint announced that the BlackBerry Curve 9310, whose GSM variant launched in 2010, will be coming to Boost Mobile for $99.99 without a contract. Boost's current BlackBerry — the Curve 8530 (released way back in 2009 on GSM carriers) — will likely be replaced by the 9310, which bests its older sibling with a 3.2-megapixel camera and the more recent BlackBerry OS 7.1.

The Curve 9310 is arriving alongside a new plan for Blackberry users, BBM Unlimited, that includes unlimited talk, text, and of course, BBM. This new plan costs $45 a month and is $15 cheaper than Boost's existing BlackBerry Monthly Unlimited plan, but doesn't include any mobile data. Both the Curve 9310 and Boost's new BBM Unlimited plan will be available on July 10th.