I would hold off on the HTC devices for awhile. Many of them, including the upcoming HTC Iris, use the same chipset and lack the graphics drivers that are needed to provide smooth UI motion even for common tasks and GPS. A lot of people have the misconception that these missing drivers are only for video playback but they are really for anything displayed on the screen and anything in motion or updated quickly is affected. Some people are organizing and attempting to write drivers themselves but there is no time table on when such a project would be completed. You can follow their progress and HTC's response of the issue here:
http://www.htcclassaction.org/
Anyhow through Howard Forums the q9c should of been launched today through Verizon to show off their fancy new VNav software. Sadly it is not to be found in the phone lineup, including business phones, at the time of this posting.