Regarding feedback, just to help with ideas - here are two webpages I use that maybe will give you ideas on features and new services:

http://translation.langenberg.com/
http://www.fa_ganfinder.com/translate/

They both have many languages that are kind of cool, the second one has a lot of them...

(note: in the above URL remove the _ character, this website is mistakenly thinking it's a swear word and putting *** charcters)