First spotted by Kim at AdWords Help Experts Blog, a Google AdWords Help thread has reports that Google is now enforcing the 35 character display URL limit set on AdWords ads.

One advertiser asked for an exception, which Google did allow advertisers to do in the past, and received a reply that read:

There also use to be a way to use dynamic keyword inserting techniques to trick Google into giving you a longer title, but that no longer seems to work for the keywords I have tested. Yes, display URL and ad title are different, I just noticed this as well, when looking back at the history on this topic.

Forum discussion at Google AdWords Help.