I've just finished putting a little Bible text widget onto our Jesus in my Language page. It cycles through various Bible texts. It runs through the languages in reverse order because the interesting scripts are all at the end of the list.
It uses the Digital Bible Platform API, which is not to be confused with the Digital Bible Library API. There's also the Bible Search API. All of them require you to register to get an API key. I can't easily tell how many Bible versions are available in all of them but I think they all have hundreds. Wycliffe USA is one of the partners behind the Digital Bible Library, which is one of the the ones that I didn't use.
I have previously blogged my persoanl thoughts on Bible text and copyright.