There is no reason that Smartphones do not support Debian also. See also Smartphone wiki page which has similar content and should be considered for merging

This page is about to track every initiative to fully or partially install the system on mobile phones:

Hardware

Projects

Many of the smartphone tasks are handled by the FreeSmartphone.Org (FSO) team:

Openmoko's FreeRunner is so far the device best supported:

Nokia's Maemo is based on Debian:

Same as Mer the community based fork:

Upcoming distro ?MeeGo may be open to accept Debian (re)built packages too:

Also there is an ugly alternative to install Debian is to run it in a chroot dir:

Misc