Just a word of advice... if you don't like a particular piece of software that came preinstalled in the ROM, just use file explorer to go to \Windows\Start Menu\Programs, find the name of the program, and delete it. In this scenario that's basically the same as uninstalling it.
Absolutely everything in this ROM goes into a separate (ROM) partition on your device, so even if there were more or less stuff built into the ROM, it doesn't affect the amount of free space on your device at all. It's all basically "free" in terms of space (unless you consider opportunity cost of not including other apps in the ROM--but that part won't come until helmi gives us the kitchen anyway).
So for the stuff that's bugging you or clogging up your Programs folder, just delete the shortcut--out of sight out of mind!
P.S. FaerieFire, I agree Pocket Sudoku isn't that great--but it was freeware and not abandoned by the author so that's why it's included. I use and really like Resco Sudoku myself but we obviously can't include it because it's commercial. If you (or anyone else) know of a better free WM5/WM6-era sudoku game to substitute please sugest one!