The Windows Mobile settings, and TouchFlo 3D settings do not give access to all of the options and settings that can be configured on the HTC Touch HD.

Examples of ‘hidden’ HTC HD tweaks, settings and options are:
1) Add Sport Mode to your camera options
2) Add Geo-tagging to photos with GPS Photo option
3) Change the TouchFlo 3D Home screen soft buttons
4) Increase the maximum allowed phone volume settings
5) Change TouchFlo screen sensitity
6) Change advanced user settings such as file system cache size

There are three ways to get access to these touch hd tweaks:

1) PHM RegEdit

Use a registry editor such as PHM Registry Editor to update the settings manually. Only recommended for advanced users, as incorrect registry settings can prevent your device from functioning, and may need a hard reset to put things back to factory defaults…

2) Montecristoff HD Tweak utility

Provides a simple dropdown list interface of the available tweaks. Also comes with a handy soft reset utility, to reduce the times you need to remove the back cover to press the soft reset hardware button.

3) J.S. Advanced Configuration Tool 3.3

Similar to the HD Tweak utility in that all options are presented as a list with dropdown changes. Worth installing HD Tweak and Advanced Configuration Tool as some of the options are different. Bear in mind though that making a change with Advanced Configuration Tool might overwrite configuration changes made with HD Tweak, and vice versa. Not really an issue, but something to be aware of if your settings seem to change. Important note: you will need to install Microsoft .NET Compact Framework 3.5 on your device before you can use this utility.