About first link. Yes it is good device, but AN2131SC has more number of pins (44). And soldering process is more diffuculty for beginners. FT232BM is more wide available and its price is lower. Dimentions are lower too. I think this chip is more interesting. About second link. You give answer on this own question - "not working at the moment..." But it's a good idea. But when it will be ready?