I don't think they are abandoning the phone, they are just going to stop producing it. There is another thread where HTC replied to someone stating that ICS is on its way.
As for the phone, the fact that its 4g and not LTE means that its going to end up running a band that will not be used by sprint therefore, why produce the phone.
I still think the phone is great in general. QHD, 1.2 dual core, 3d... My friends ask me on a regular basis if they can use my phone to watch trailers in 3d... thats a cool feeling.