A list, in no particular order, of my favorite apps for Android.
z4root (Fast and easy way to root if you are using a Droid X... but a quick internet search should help you find a root application specific to your phone.)
Act 1 Video Player
Adobe Reader (So you can read .pdfs on your phone.)
Angry Birds (And all variations. Note that you can now get the ad-free version as well as Angry Birds:Rio on Amazons Appstore.)
Amazon Appstore (Hey, it's a whole 'nother place to get Android Apps... note that you have to go to the Amazon Website to set this up.)
Astro (Great file manager.)
MLB At Bat 11 (But really only if you're a baseball freak.)
Bloat Freezer (Requires root, let's you freeze all of those built in cr-apps)
Bubble (Because everyone needs a level every once in a while.)
Carr Matey (If you have a problem forgetting where you parked, like I often do.)
Dial Zero
Digital Clock Widget (If you want a clock that's actually easy to read and includes the date on your home screen.)
DIRECTV (Awesome if you happen to be a customer.)
Evernote (Just a great all around note app. Plus, you can use it to take pictures of all your receipts, tag them, and not worry about the original.)
Facebook (Duh.)
Flashlight (Turns your phone into a flashlight.)
Fruit Ninja (Another incredibly addictive game.)
Funny SMS tones
Gmote (Control your Media Center PC with your phone.)
Goggles
Google Sky Map (Still one of my all time favorite apps.)
Grocery IQ (Best shopping list app ever.)
GroupMe (Turns SMS into a chat room for whoever you want to invite.)
Groupon (I've actually gotten some pretty kick ass deals with this.)
GTasks (Great little To-Do list.)
Handcent SMS (Text messaging the way it was meant to be.)
Homepipe Free (Stream your music from your computer at home to your phone.)
JEFIT (Great app for the gym.)
Kaloer Clock (Turns your phone into a pretty decent alarm clock.)
Listen (Best podcast app ever.)
Lookout (Keep your phone safe.)
Mint.com (Great personal finance site, great app.)
Multicon (Pack a ton of app icons onto your home screen.)
Pandora (Is there anyone who doesn't love this music streaming service?)
PayPal (Easily send money to friends, split checks, all that fun stuff.)
PhoneFlicks (Manage your Netflix Que from your phone.)
Pulse (Best newsreader out there, hands down.)
Ringtone Player (Pretty decent ringtone customization app.)
Rockplayer Lite (Another pretty good video player.)
Seek Droid (For when you loose your phone.)
Shopper/Shop Savvy (Find out if you can buy stuff cheaper from somewhere else-while standing in the store.)
SoundHound (Identifies music for you.)
Square (Sign up for this service, and you can accept credit cards. With your phone. Enough said.)
SwiftKey (My personal favorite of all the available soft keyboards.)
TuneIn Radio (For listening to internet streaming broadcasts.)
WeatherBug Elite (My favorite weather app.)
Yelp