While I was surfing the web I’ve found this two bits:

Some programs seem to stop working after you install Windows XP Service Pack 2
http://support.microsoft.com/default.aspx?kbid=842242

…seems that quite every application on the planet will have issues with SP2
(hint: release early, release often)

…also seems that OSNews readers do have a lot of problems (but they aren’t alone)

Ehy IBM sysadmins: good luck!

Yet another reason to keep my Windows2K installed (but I’m in now way a normal PC user…)

Second bit (the most ridicolous one):
Windows XP Starter Edition

No more than 3 application running together, no more than 800×600, bandwith limited, no security… So, no more XP versions please!

They are poor not stupid!