- c:geo – Free, pretty good
- Geocaching – Paid, but extremely well written. Use c:geo if you rarely cache, but if you’re a regular geocacher, buy this.
- Tricorder – Free, uses virtually all of the sensors built into an Android phone
- SuperBox – Multipurpose utility, I use it mainly for quickly checking my battery and moving apps to the SD card
- MyBookDroid – You can use it for many purposes, but I use it to quickly scan/catalog my book collection
- WordPress – Bit obvious, this.
- ConnectBot – SSH client, tiny letters but handy for rebooting a server or restarting a service
- ColorNote – Best notepad app I’ve found thus far
- ElectroDroid – Multipurpose electronics utility, has all kinds of reference material
- Diaster Alerts – Good way to check on world wide alerts of bad things
- How To Tie a Tie – I’m not much of a tie person, so this is surprisingly handy
- KnotsGuide – Very handy
- Net Scan – Works alright, scans a wifi network
- Net Swiss Tool – Various tools that are common on OS’s (ping, tracert, etc)
- Wifi Analyzer – Has a handful of utilities for scanning wifi networks
- SSHTunnel – If you are using public Wifi, you want to secure your traffic. This is the best way of doing so.
- Where’s My Droid – Handy for “Where did I leave my phone” situations
- Amazon Kindle – eBook reader. I just use it for free classics and reading books from Baen
- Slacker – Internet radio
- Khan Academy – Educational classes on just about anything