Well for one, this SQLite.js is completely useless without persistence. All you need is some way to get the contents of the database and save it to a file.
That way if you have some new type of architecture that's not supported by SQLite, but you do have a JavaScript VM available you could really easily whip up an SQLite based app without going to the trouble of porting SQLite itself.
That way if you have some new type of architecture that's not supported by SQLite, but you do have a JavaScript VM available you could really easily whip up an SQLite based app without going to the trouble of porting SQLite itself.