Avatar: Hurray! Now people on bad connections won't show up as clouds for extended amounts of time =)
Object Cache: Hopefully the cache will be bigger, too. I suspect the use of e-tags just as browsers use to cache data. I'm really looking forward to this one. It should make playing over wireless better, too.
HTTP: Will you be implementing SPDY? It seems a good time to do that as well, and it will speed things even more!
This all sounds smart from a corporate view, too. Bandwidth is a variable, expensive cost. By making these changes the Lab should reduce its operating expenses.