Skins
Here are some of the froopiest HHGTTG skins and interfaces available.

Downloadable Desktop Themes

• HHGTTG Desktop theme - Classic HHGTTG (Picture) (More info)

Downloadable HHGTTG Skins (Winamp, IM, etc.)

• Hitchhiker's Guide Yahoo Messenger IMVironment
• Marvin Winamp skin - Modern HHGTTG (Picture) (More info)
• Winamp skin - Classic HHGTTG (Picture) (More info)
• Winamp skin (2) - Classic HHGTTG (Picture) (More info)
• iRiver H300 skin - Must have PhanTim3 installed (No picture) (More info)
• PhanTim3 skin - Must have PhanTim3 installed (Picture) (More info)

Downloadable PocketPC goodies

• HHGTTG Interface - Default latest version. For PPC2002 or Windows Mobile (More info)
• HHGTTG Interface - By request, "No Phone" version. PPC2002 or Windows Mobile (More info)
• HHGTTG Interface - Older version. For PPC2002 or Windows Mobile (More info)