PocketNow is reporting that according to "a reliable source" Boost Mobile will begin selling the HTC Evo Design 4G in June. It's a high end Android phone that launched on Sprint last October. The PocketNow article also says Boost's version of the Design will be running Android 4.0 Ice Cream Sandwich. The Sprint version currently runs Android 2.3 Gingerbread although HTC has said that it will get a 4.0 update this year.
Although this isn't an official announcement, PocketNow has a good record of being the first to reveal unannounced phones that eventually ended up on Boost including the Samsung Prevail, Samsung Transform Ultra, LG Marquee and Samsung Replenish.
Like the HTC EVO 3D that's supposed to be coming to Virgin Mobile, the Evo Design is a 4G WiMax phone. The main differences between the two are that the Design is smaller and has a single core rather that dual core processor. The Design is also different in that it's a world phone with a SIM slot for use on GSM networks outside North America.
WiMax is an early 4G radio technology that's over 3 times faster than the EVDO 3G that current Boost Android phones support. However WiMax coverage is limited and Sprint plans to replace it with even faster 4G LTE and is no longer expanding coverage. WiMax phones like the Evo Design will use EVDO if WiMax isn't available.
Sprint's no commitment price for the Evo Design is a whopping $599.99. While I'm sure it won't be that expensive on Boost, it won't be cheap either. I'm guessing a price around $350 - $400. Sprint customers with a WiMax phone pay an extra $10/month for service so don't be surprised if that's the case with Boost too.