Well, I've just loaded Modest up for a try and it seems to have many of the same erm... 'features' as the previous app. FYI, here's what I've found:

First, After setting up the account, it download about 475 messages, all archived in Gmail, but this is of course nowhere close to the actual number of archived messages I have on Google's server.

Now, when I click 'refresh' I get two or three more archived messages each time, but so far (twenty minutes) it hasn't downloaded the test message I sent immediately...

Finally, deleting the downloaded headers, in spite of what the pop-up windows says, does not delete them from the server (which is good, because that's where I want to store them, not on my N810).

As I write this, it occurs to me, though, since it loaded up as the native app, how can I be sure I'm actually running Modest? There didn't seem to be an 'about' section....

Edit: I just check the application manager and it show it as installed, so perhaps it is indeed running...