I think mobile folding was dismissed at the appropriate speed. The power (processing wise) and the power (battery life) is not conducive to folding.
If at some time in the future this changes, they will certainly revisit this option. Until then, consider it a no go, and a dead topic.
Boinc already has a mobile app for android, Ive used it before. It also has this very handy option for people that are always on the go and not next to their charger. The option is simply to autostart the client when the phone is plugged in. I have a small collection of android devices, a dual core and two quad cores. the quad cores are always by a charger in my car or home or at the office. Personally, I would run FAH on my mobile devices almost 24/7 . Being that I used to be in the cell phone business (tech department of course ) I still have some contacts and could help promote an app like this in store fronts.
There are many things about x86 and ARM that are different. ARM has some real advantages in the way it processes data. ARM should not be dismissed as a possible folding platform. A lot of phones that are coming out today and the processor in my nexus 7 tablet and GS3 can probably outperform some cpus people are folding on today. Oh, the boinc app even has the ability to use the phones built in gpu.... UK has already released an eight core ARM phone, i think its the Note 3 UK version.
Its been a while since Ive paid attention to the ARM inner workings but I do know they have advantages that if used properly could be used for certain tasks very efficiently.
Porting to ARM should not be hard to do with android since its linux based. Makes me wish I had the extra time to look into this, I dare say with enough time I could port the command line linux FAH client into ARM. Im sure there would be some dependencies that would have to be recompiled to ARM as well before compiling the final ARM client. If anyone wants to tackle this Ill be standing by with what android knowledge I still remember from being a cell phone tech.
When I ran Boinc on my phone the heat level was not very bad either...
Another very big part to consider, is that as of Oct 2013 there were over 40 million GS4 phones sold ( high speed quad core ARMs with Im quite sure what is an Nvidia based gpu). And that is only the GS4 up to last october, and it continues to sell like hotcakes. The power of the mobile network is nothing to be under estimated.
----- EDIT - my battery held up pretty good even when not on the charger using the boinc app