GMail Two-Way Sync Now Working on BIS?

We had a few people notify us through Twitter last night that a few features in GMail had started to sync with their BlackBerrys. At first we weren't so sure how this could be happening, with reports on it not releasing until BIS versions 3.3-3.4. While some report it to be working well, not everyone is getting so lucky. Some people are reporting either only half syncing capabilities or nothing at all. Is it working for you? have you noticed your sent messages from the web version syncing with your BlackBerry?