Comments on profiles are deleted with only one touch/click.
Although photos are mobile ready, there is no link on a members profile to go to their photos
although blogs are mobile ready, there is no link on a members profile to go to their blogs
it's possible to post a blog but you are not able to find it back on your mobile without switching to the desktop version. kind of defeats the purpose.
really missing photo albums in the mobile site, sharing is most of the time about a new album and not about one specific photo
although I think videos should be a part of the mobile site, I can understand this is a difficult task
events are a core feature and should be available on mobile (via RSS does not work, as it can not even sort on the date of event) - a listing page is enough in my case
the blogs are not very attractive as they do not list a blogphoto, it's not inviting to click if one sees only a peace of text (and a profile picture, which is not relevant in most cases)
the like comment bar hangs now and then, IOS5 iPhone 4s
commenting on a blog or picture is not very user-friendly. I did not understand how this worked the first time. in my user model I would expect the last comments to be visible and automaticly loading the rest when scrolling down, not touching a 'previous comments button' first.
I noticed a lot of delay between comments added via the desktop version before visible on the mobile version