They celebrated G-Chrome's Birthday with cakes and balloons. They mentioned some goals achived by Chrome since September 2, 2008, what they told, quoted from their official Chrome blog:
Their Birthday cake, released on their blog.
" – 51 developer releases, 21 beta releases or updates, and 15 stable releases or updates
– Over 20,600 bugs filed (4367 of them were duplicates, 3505 have been fixed, which leaves a whole lot left to go!)
– 11 external committers and bug editors, 46 external code contributors
– 50 Chrome Experiments
– 26 posts on the Google Chrome blog
– 12 Chrome Shorts, a collection of short films about Google Chrome
– A sequel to the comic in Japanese
More importantly, we’ve improved by over 150% on Javascript performance since our initial beta.”