Yep hun, you are right with the talking thing. I'm sure he will be fine and 11months isn't unusual not to be talking! My dd started talking really early and has a huge vocabularly now, but she didn't start walking until she was just gone 18mths. I think they concentrate on one thing at a time and your little one is obviously more into mobility at the moment! My ds is already behind his sister for talking. She was saying mama and dada at his age but he is crawling and in to everything which she wasn't?
I have known a couple of people who's children had this and one didn't need any treatment the other had to have the tie snipped, but that was because her LO wouldn't (couldn't) feed. She had to put up a bit of a fight to get it done though. Her LO was only a few weeks old when it was done. From what i have been told, if it is going to cause problems with feeding it is usually breastfeeding more than bottles as they can find it hard to latch on sometimes. You obviously don't have this problem so i would try not to worry hun. Sounds like he won't need to have anything done to me? Although i'm not a doctor. If you get worried speak to the HV or GP GP. Xx