Fueled by my recent find, I set off to find what was hopefully a simple registry tweak to set my IE homepage on my smartphone. It turns out it’s as simple as changing the value of the following key to the URL of your choice:

HKey_LocalMachine\Software\Microsoft\Internet Explorer\AboutURLs\home

If you don’t have one already, download one of the many Windows Mobile registry editors (I use the one by PHM).