The UUP went from a plurality of 6 seats down to 1 and are basically dead last on the tote board. The DUP is now up on 9 seats, which is very nearly a NI majority, and Sinn Fein is in the plus column. I don't proclaim to know what it all means, but I assume it means a huge shift in the political direction of Northern Ireland.
IMO, these elections normally don't matter so much. First of all because SF won't even take their seats in Westminster. Must be nice to get all that money and do - as they say in Ireland fu**all. At least our politicians show up (most of the time). This election was symbolic though, in that nationalists/republicans showed they don't care what the PIRA has done in the past 6 months and don't care that Gerry continues to be a terrorist apologist.
The true test will be whenever they bring Stormont back and have those elections.