ESPN Radio: It's ESPN Radio. On a phone. So you can listen to the talking heads of ESPN make sense of Lebron on live sports radio streams and over 40 different sports podcasts (including Bill Simmons). There's Sportscenter updates too. Sports radio can be a screaming mess, but ESPN Radio has some good content. It's $5, so only buy if you'll really listen.
Pricegrabber: Like the ten million other barcode scanning apps for Android, but it's hooked into Pricegrabber. The big feature is its 'BottomLine' pricing, which adds in shipping and tax, so you know how much something actually costs. Free.
1Password: Maybe it's a little scary to have all your passwords on a mobile device, but 1Password is the best password manager around. It keeps track of all of your complicated "G2zs01Tt"-type passwords in a simple program, using a single master password as the key. You have to manually import your passwords onto your phone from your computer, which is annoying. It's still in beta, so it's a bit rough around the edges. Technically free, but requires $39.95 purchase of the desktop version. Android 2.1+
Borders eReader: Powered by Kobo (which has its own Android app) but with Borders gloss. It looks and works decently enough, but is mostly nice for big Borders shoppers, since it links up to Borders Rewards program. The app also supports automatic bookmarking and customized font and type sizes. Free. Android 2.0+
With the Fast Web Installer add-on for AppBrain, you can head to AppBrain's own market, search and sort to find an app, then click "Install" and see it instantly download onto your phone.
Which makes getting apps onto your phone way easier. Browsing app stores on your phone is convenient, but certainly not fast by any measure. It only works with free apps.