There is no reason that Smartphones do not support Debian also.

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

Hardware

Projects

Smartphone tasks is handled by ?FSO team :

http://wiki.debian.org/Teams/DebianFSO

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 :