The speaker on my 650 has been cutting out intermittently. Inserting and removing the earset does not always make it work again.

I just had this problem again where PTunes has no sound thru the speaker. I downloaded freedom from toysoft and used the menu to 'enable' the speaker and PTunes started to play immediately.

Hopefully the upcoming firmware update will fix this issue.

ps . freedom crashes my 650 often so I uninstalled it immediately.