HTC Mazaa is expected to hit Sprint within the next six months and may even carry DDR2 memory for an added speed boost.
XDA developers uploaded a screenshot that show a device made by HTC with the Windows Phone branding on the back. The device appears to have a 3.7 inch display and has the traditional three buttons at the bottom for the Windows Phone platform.
Besides the little tidbits of information leaked by the tipster, not much else is known at this point.
[Source: XDA Developers]