Pocket PC Software I use on my HTC Windows 6.0 phone:
Fun Things
Buddy Beacon
Cyber Tracker 3, for tracking wild animals with your handheld
Today Screen Plugins/Interfaces
CLauncher Palm like icon interface to WM
rlToday
HTC Home Plugin
6 button customizable HTC home plugin Be sure to delete the other one first if you have it installed. Then download and install the customizer and it will download proper versions of everything for you. Don’t forget the HTC Task Manager and the WM6 black theme.
Learning
Help 2 Speak translates speech in several languages
Math for Mobile
Productivity
Jott
Books
Pocket Xpdf so you don’t have to scroll back and forth to read a pdf file. Just select ‘Text only’ under tools.
MobiReader For reading *.txt, *.html, *.doc, *.prc and ebooks. It remembers what book you are reading and your location in the book.
Internet
WebMessenger Mobile
NetFront Browser
Palringo - IM and more client
Flash for Pocket PC
Opera Mobile and Opera Mini ( mini is free mobile is not )
Google Maps
Windows Live Search
Yahoo Go
AOL AIM
Multimedia
PPCGeeksSprintMMS Download and instructions for sending MMS messages over Sprint with your WM phone.
TCPMP ( The Core Player ) does video and streaming radio on your Windows Mobile phone. Be sure to also load up the plugins for various video formats. They must be installed in the same location as the player. There is a Flash plugin as well you’ll be wanting.
Utilities
RAR unpacker
AceIT has a very nice calculator with all the basic science functions you’d expect. ( trig/sqrts, etc )
Calc98 Calculator with scientific functions
Pocket Translator by Innersky translates between English, Spanish, Dutch, German, Latin, Portuguese, Italian, and Swedish.
Total Commander for manipulating files on your phone.
iPhone
Grumps iPhone interface for Windows phones gives you the very same home screen and icons and behavior you’ll have on an iPhone but with out the iPhones limitations. There is also an iPhone Contact manager and Slide to unlock. I prefer the HTC interface, but the iPhone contact manager is really nice.
HTC Cube
PPC Download/instructions/support for HTC Cube on other WM6 Phones
Ringtones
Tone Manager lets you assign ringtones to categories and do bulk updates
Silent.wav because you don’t want to hear from everyone.
Themes
PocketThemes
Backgrounds
Registry Editor
PHM Registry Editor