@aIA - I think it was done (Rasperry Pi version of Slimcoin client), by @cryptovore - some posts ago.
I thought about also, making a full node version of Slimcoin, cause it's mainly written in C++ and python, with the usage of QT libs, which are compatible with Android.
I'm still a noob, when it comes to coding, but I'll try to improve my skills (from 0 to some coding isn't so hard, then it goes uphill)...
Tho I think full node version for Android, shouldn't be so complicated, apart from rewritting interface, which can be a little trouble.