I find it especially troubling that Nokia took extra effort to:
1). Not show the sms sending activity to the user
2). Make it very2 persistent in retrying the process if it fails

Since N900 is one of the first (if not the first?) mass marketed true Linux handset.. this does not bode well for:
1). OSS/Linux image to the general public
2). Nokia's relationship with the OSS community

Oh, and the latest 'push technology' used in Maemo:
http://talk.maemo.org/showthread.php?p=732120
(still technically unconfirmed, may be related with the bug reported by tomaszd and others about randomly (?) installed apps when removing packages).

I don't expect Nokia to answer point by point to all of the complaints, but they should understand the seriousness of this issue to their OSS supporters/users in general.