[trout]

handcent SMS - I like the popup feature, only non-stock SMS I've tried. Touchdown - I like the customization, I only have to enter my pin when entering the application.

Google authenticator - if you're carrying an android and using gmail you should be using two factor.

Astro - solid file browser

Dolphin - only browser I've used outside of stock, very solid, tabs, sync.

Evernote - unified note taking across my 3 devices (phone, laptop, laptop)

LTE on/off - turning off 4g in spotty areas or when I'm low on battery

Meebo - I use it for a xmpp client

Pandora

Swype

Webex - I do a lot of these, and this app is great