I have had the incredible from launch, I had the low memory issue with sense. I went and deleted everything from the cache foe Facebook and twitter and that helped. I have since rooted and installed cm7 and never had an issue. It all depends on how active you are on fb and text and mms. That is why Thomas problem came up for me often. Since o got rod of sense no issues, I think that is because with a sense phone it is in the friendstream as well as the app and the messaging app and senses messaging. This does happen to all phones but o think that is the reason that sense phones are more affected by this.