First, I like your style with the personal recognition via cell phone. NFC or near field communication is going to get very popular soon and you are on that level with that feature.
Second, tbowland has only 512mb beautiful lx series hardware last I checked. It says ambia in the upper right yes? They are old however tbowlands have no usage. The GX series most of us got off auction looked like they were dragged behind a truck.
Three words, go for it. Try out that image I just uploaded. I removed aptitude from it so installing will take some time. I use wget. find the download link and wget http://........deb
then sudo dpkg -i .........deb and voila.
If not I can see what I can do about adding the packages to my build and imaging that for you. That route will take me a few days. I am gearing up for a local lug meeting tomorrow evening and a huge job interview the next morning. After that I am free to build.
I cant wait to be able to afford and play with insteon myself.
Let me know