the dream is running android (which is not gnu/linux, as the OP correctly wrote)
palm webos isn't gnu/linux either, just the kernel and a custom web runtime.
the aava mobile is a development platform, not a product. (although it's true that it runs a gnu/linux, in the form of MeeGo )
Short answers are not good .
Every phone running a good linux kernel with a GSM module supported by FSO or oFono is able to run debian (or any other standard userland OS) with a free telephony stack and GUI.
Htcdream and palmpre are just a couple of examples.
It may be the question was interpreted as what other phones run a standard userland from factory ?
I hope to have a device with Linux ARM version on it and 3G connection with IP address (telephone number is not important now). OS should be user upgraded.
Now it seems no device with mobile phone form factor can meet this goal and all ARM devices are not user's OS upgraded.
Linaro/Ubuntu seems make effort to ARM platform and hope this kind of device will be in the market soon.