Yeah agree with WinCE. I pulled out a WinCE unit and replaced with the Android 4.2 unit.
Being android you can use the launcher of your choice, as well as music app, nav app etc of your choice.
And you aren't frozen in time if some newer, better app comes out that supersedes what you have. eg Nokia maps is apparently going to be available soon for Android which I am looking forward to as there are some small issues with my current preferred nav app iGo Primo.
The interface is smooth, multitouch enabled. Dual core 1Ghz with a proper video chipset unlike OEM and 4x50w rather than 4x25 in OEM with a good (as far as they can be at the price) DAC setup.