There is. I used that for several years. However I don't anymore because if you work alone or small groups I strongly suggest to use a regular gmail/google account and forward your @domain.com email there instead of using the gmail/app.

Otherwise you will be always be running an outdated version of all gmail services and there is no real benefit really in having gmail handling your MX.

That requires you to maintain a mail server of your own and everything that comes with that. I prefer to have pagers go off at Google's HQ instead of mine when something happens.

What features are you using in Gmail that I'm not getting in Google Apps? I have priority inbox and all the latest Labs experiments. I haven't heard of anything I'm missing.

As I said, I closed down my google apps account a few months ago because things were missing or they arrived later compared to the regular gmail, so I don't know what you may be missing right now.

Also, if you have an android phone you cannot buy apps if you sign in only with your apps account, you must use a regular account. That is a PITA, believe me.

With the new multiple sign in, I use my gmail account as primary, then sign into my other two gApps accounts (personal, work). That way, all my analytics, web history, and such remain under my [primary] gmail account and I can still open multiple Gmails with different accounts in them.

I've found a little lag in gmail to apps features, but not long enough that I've worried about it.

Apps accounts don't play well with a lot of google services. It's quite complicated to grant Google Analytics access to an Apps account.

You don't have to use your apps account only, you can still use your regular one for buying Android apps etc.

Here is the scenario: you have google apps account that you use for all your stuff and you sync it with your android device to access email, contacts and such. This is account A. Then you realize the market won't work, so you sync the regular google account, account B.

Now, you have the hassle of having to deal with multiple account on your phone, but is not too bad. It comes bad when you discover that if reset your phone and sign in only with account A or only with account B or even in the wrong order (B, A), all the apps you bought are simply gone.

Yes, the market sucks that much.

The second part of your answer isn't correct anymore. Google recently (about September) migrated all of the apps emails to the wider gmail infrastructure

http://www.google.com/support/a/bin/answer.py?answer=182034

At least Buzz and Profiles are still not working for Google Apps users.

http://www.google.com/support/accounts/bin/answer.py?hl=en&#...