It was easy to get things working in Swe -> Int direction, and 98% of the translation corpus now produces well-formed interlingua. I compiled a Swedish recognizer, and hooked everything together to get a speech-to-speech system for Swedish -> English. Anecdotally, it's not bad.
The most urgent thing now is probably to add more Swedish coverage. There are several very common constructions that currently aren't in the specialized Swedish grammar.