Every so often I experience the wirdflow keyboard lagging a bit. It's primarily in messaging because that's where I'm doing all my typing. Sometimes it seems like the little trail that follows the path of your finger will lag or stutter. I can't tell if the keyboard itself is actually stuttering or it just feels like it is because the finger trail is visually lagging. I'm curious if anyone else has experienced this? My 1520 is an AT&T green model. After I updated to Denim I did a hard reset.