Google puzzle for you (win an iPod Photo!)

Note the search results here and here.

1) [EASY]: What oddness do you notice when you compare the results pages?
2) [HARD]: What might explain the situation?

I should have a definitive and official answer for you within a week.

In the meantime, post your guesses below!

[And to the person with the best guess -- most accurate, most entertaining, whatever -- I'll provide you with a genuine photo of an Apple Ipod! :D]

UPDATED 6/5/2005
The puzzle is now, well, broken. But for the original answer, see my entry here :-)