Hey, if anyone's having trouble getting the map tiles to show up in SDK 1.5, it's probably because it uses a different debug keystore. The new one is in (at least on Windows XP) C:\Documents and Settings\YourName\.android. Just follow the instructions here again and paste in the new API key.

Hi,
i have the same problem today.its uses the diffrent debug.keystore.i have fixed this problem
GO TO THIS PATH (window xp) : C:\Documents and Settings\dvlp128\.android\debug.keystore
and generate the new key thats all.