Whatever upgrades were done about a month ago have created lots of technical issues for iOS users. The following have happened to me at least once:

1. Twitter posts don't show up properly. Often they are shrunk and can only see the top 10% of the Twitter message

2. Controls on Forums stop working (like jump to top from bottom post of a feed, or advance to next page of the feed, or return to the Forum main page link).

These are two of the most frequent and most frustrating problems. Overall, the experience has really gotten poor.