You can set a small custom text message
on the bottom right of your today screen.

HKLM\Software\Microsoft\Shell\Devicebeta\today = "text message"
(REG_SZ, no quotes)

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Boost Windows Mobile 5 performance up to 20 percent

[HKLM\System\StorageManager\FATFS]
CacheSize = 4096
EnableCache = 1

[HKLM\System\StorageManager\Filters\fsreplxfilt]
ReplStoreCacheSize = 4096

Soft reset for changes to take effect.
Default values for all keys are 0

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This tweak might help improving visual performance of your pocket pc:

1. Open your registry editor on your Pocket PC
2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\GDI\GLYPHCACHE\
3. Change the value of 'limit' from 8192 to 32768
4. Close registry editor and soft reset.

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I have a software solution to use the FM Radio without Headset, i know that in the headset is the antenna!

You must change a value in the Registry under:

HKLM/System/State/Hardware/ and now you must chance the Headset value to 1.

When you plug the headset in the device is change the Value automatic to one. When ist not plugged than is 0.

But without antenna it can´t find radioprogramms :-(

(hint
The FM radio band is 3m or 300 cm wavelength. So the best antennalength would be a quarter wave which equals 75 cm
)