After a bit of searching around and testing, here's a supplementary list (i.e., not including things I already talked about) of apps worth looking at.
- Akimbo player for audio books ($)
http://www.appbrain.com/app/akimbo-audiobook-player-trial/com.akimbo.abp.trial - Backgrounds for … backgrounds. Lots of pretty backgrounds
http://www.appbrain.com/app/akimbo-audiobook-player-trial/com.akimbo.abp.trial - BoggleDroid Lite. Play Boggle.
http://www.appbrain.com/app/boggledroid-lite/org.lite.boogledroid - C:geo for geocaching
http://www.appbrain.com/app/c:geo-~-geocaching-for-android/carnero.cgeo - Bump - transfer files between devices after a bump
http://www.appbrain.com/app/bump/com.bumptech.bumpga - Evernote – cloud-based notetaking, sync with desktop
http://www.appbrain.com/app/evernote/com.evernote - Lookout – security: antivirus, find lost device
http://www.appbrain.com/app/lookout-mobile-security/com.lookout - Inserty – store frequently-type text, insert into text fields
http://www.appbrain.com/app/inserty-(free)/com.roomfour0four.android.market.inserty - Roboform (yes, I know... But KeePass doesn't allow editing of v2 data on the android) ($)
http://www.appbrain.com/app/roboform/com.siber.roboform - WidgetLocker – replacement for lock screen, hosts regular widgets. This lets me play or pause music or audiobooks while I’m driving, without having to unlock ($)
http://www.appbrain.com/app/widgetlocker-lockscreen/com.teslacoilsw.widgetlocker - D7 Google Reader – pulls RSS from Google Reader
http://www.appbrain.com/app/d7-google-reader/com.droidlab7.reader - Dolphin Browser Mini – replacement web browser, has tabs
http://www.appbrain.com/app/dolphin-browser%E2%84%A2-mini/com.dolphin.browser - ES File Explorer – file explorer, also explore SMB and FTP folders (I’ve got a problem on my PC, where connecting the SD as USB causes BSoD, so I have to pull files through WiFi)
http://www.appbrain.com/app/es-file-explorer/com.estrongs.android.pop - Facebook
http://www.appbrain.com/app/facebook-for-android/com.facebook.katana - Folder Organizer – Tag your apps, then put a widget on launcher that, when clicked, brings up a menu of apps having corresponding tag. Useful if you have too many apps ($)
http://www.appbrain.com/app/folder-organizer/com.abcOrganizer - GO Contacts – better organizer for contacts. Also, a better Dialer.
http://www.appbrain.com/app/go-contacts/com.jbapps.contact - GO Launcher EX – nicer launcher. Also, its support for scrolling widgets is required for some other stuff I listed.
http://www.appbrain.com/app/go-launcher-ex/com.gau.go.launcherex - GO SMS Pro – much better SMS. Threaded conversations, etc. Nice widget.
http://www.appbrain.com/app/go-sms-pro/com.jb.gosms - LunaSolCal – widget showing sun rise/set, moon rise/set and phase
http://www.appbrain.com/app/lunasolcal-mobile/com.vvse.lunasolcal - Battery Solo Widget – just show battery strength in a pie
http://www.appbrain.com/app/battery-solo-widget/net.maicas.android.batterys - NewCompass(AD) – like normal compass, but also shows direction relative to sun and moon
http://www.appbrain.com/app/newcompass(ad)/com.leeyh.NewCompass - Pure news widget (scrollable) – Show headline news in a widget, as scraped from a Google Reader account ($)
http://www.appbrain.com/app/pure-news-widget-(scrollable)/org.koxx.pure_news - Pro HDR Camera – take HDR photos. (really just a toy, but a cool one) ($)
http://www.appbrain.com/app/pro-hdr-camera/com.eyeappsllc.prohdr - Quick Settings – Quick access to common settings
http://www.appbrain.com/app/quick-settings/com.bwx.bequick - Scrambled Net – puzzle game.
http://www.appbrain.com/app/scrambled-net/org.hermit.netscramble - Wikitude – like Google Sky Map, but for Earth. Labels what you’re looking at.
http://www.appbrain.com/app/wikitude-world-browser/com.wikitude - GoldenPicLite – calculate "golden hour" and "blue hour" for photography
http://www.appbrain.com/app/goldenpiclite/jebs.goldenpiclite
. My phones sync with their networks and are always correct 
![:-\](/forum/Smileys/fun/sleepy.gif ":-\")
