Complete re-write and not based at all on the standard Android mail client.

Features:

Cleaner UI
Save/Download attachments to SD (OI File Manager needed, download free from marketplace)
Bulk Tools (read/unread/delete)
Support for the following:
Yahoo Suite (Yes, yahoo, ymail, and rocketmail really do work)
Hotmail Suite (Yes, we got hotmail and msn to work as well)
Aol (Some people still use aol)
Gmail (We think it is better than the stock gmail client)
GMX (Yes, we support this one)
Better performance than stock mail client
Asynchronous loading (Just scroll down to read your emails)
Status bar notifications
Pull/Sync with mail server
More….

https://slideme.org/application/maildroid-091-beta