im a developer at heart so almost all things i make come out free on thingiverse, only a few projects planned for patreon so far but will also be the most expensive to make (3000$+)

When it is ready i can post it on android forums, but for me this is about having a N900 again with higher resolution, more ram, cpu, bigger keyboard = more keys, as good a sound as possible, BIG battery, as stated 10,000mAh is no problem, but again this can be expanded to many phones and various battery sizes, 10,000mAh should be enough for now, and yes it will have some sort of external charger, can be charged from USB but don't know about fast charging (9+V via USB) as USB should go through a HUB for keyboard and whatever else people want.