As for PC Stranger...
Um, we did that too Ssssssh ;-)
Here's a list of what's different ...
1. Supports multiple 4:3 and widescreen screen resolutions, we've been running it at 1920x1080 but at 15FPS boo.
2. The audio has been remastered, no more 11khz 8bit audio, now 22khz (or 44) 16bit
3. The GUI has been given an overhaul, still based on what there was prevously, just a lot tidier.
4. No the HD models won't be in the PC version at this time, but who knows.
5. 36 Steam Achievements.