Calorie Counter - This app functions like a food journal. Enter your current weight, goal weight and other like information to get your recommended daily caloric intake. Then log your meals in the food journal. You can enter it by scanning the barcode or doing a search for that particular product (brand, size, etc.). It automatically fills in the nutritional value information and adds it to your day's calorie count.
Craigslist (AKA Craigsnotifications) - Awesome app. Create saved searches and receive notifications every time a new posting is added. The end.
gReader - Read all the blogs you follow on Google Reader from your phone. It also can send you notifications when a blog post is added.
MusicBox - Download Mp3s
Notes - This is the app that allows you to write down and save information you want/need at a future time without scrambling for a pen and paper.
OI Shopping - Create multiple shopping lists in this app and name them (grocery list, christmas list, etc.) Once you buy the item on your list, you simply tap the checkbox next to it to add a check mark.
PhoneFlicks - (For Netflix users) Update your queue, rate movies and do most things you can do on Netflix. Only thing I wish it did was let me what movies on Instant Play from my phone :(
Shazam - Of course. Everyone with an iPhone or Android has to have Shazam. If you like the song playing on the radio, run Shazam to get the name of the song and the artist.
Sherpa - I am not sure, but I think this app may be exclusive to MyTouch users. Search different categories of locations nearby (restaurants, gas stations, ATMs, etc). Selecting any of the venues listed on Sherpa normally returns options like Call, Directions, Reviews and more.
Shopper - Scans the cover of books, CDS, DVDs or barcodes and searches Google to locate the different online/nearby stores that sell the item and lists the prices. You may also search by name.
ShopSavvy - Scans barcodes or searches by product name to find a list of nearby/online stores that sell the items and how much they sell them for. I'm not sure which is better of Shopper or ShopSavvy, so I'll keep both till I figure it out.
Taskos - Yay! One of my favorites, because I'm a to-do list LOSER. Keep all your to-do's in this list and check them off once they're completed.