Ubuntu Wiki

Bug #1: Microsoft has a majority market share.

Bug #2: People don't try to make hardware Linux compatible the way they try to make it Windows compatible.

Bug #3: I do not have enough spare time!!!

Bug #4&5: School!!! Homework!!!

Bug #6: Google hasn't contributed to Linux. Edit: resolved

Bug #7: There is no compiler to compile Python scripts into machine code.

Bug #8: Python isn't fast enough to program an X Windows System.

Bug #9: The X Windows System is implemented in software.

Bug #10: Microsoft Windows does not use the X Windows System.