I use avast too, and it *used* to throw that warning up, but when I clicked on the link that crabbyprincess put up, it took me right to their download site, without the warning popping up. If you actually looked at the avast warning though, it was not real clear as to WHY that site was flagged. Mine said that there had been no incidents in - I think it was 60 days. That being the case, why was the site still flagged?
I've used Mabilo since I first got my Droid, and really like it's functionality.