If things like GChat and Chrome Sync aren't recognizing your Apps account, your administrator hasn't enabled those applications for your domain (you can turn on

If things like GChat and Chrome Sync aren't recognizing your Apps account, your administrator hasn't enabled those applications for your domain (you can turn on/off pretty much every Google service individually on a per-domain basis). I use both on my personal Apps account all the time, so it DOES work if enabled.