UPDATE: 2/28 @ 1:42 PM
The Moderate Voice links to a report by the Xinhau news agency that Israel has proof of Syrian involvement in last weeks Tel Aviv suicide bombing--and is briefing European diplomats on the matter.
For those of you who don't know, Xinhau is the state news agency of China, so take whatever it says with a grain of salt. Still, this could be very interesting, especially since, as TMV notes, Syria is already under intense scrutiny of its support for insurgents and possible backing of the Rafik Hariri assassination. So while normally Europe might just scrape by with a half-hearted condemnation and call for dialogue, here we might finally see some action.
UPDATE: The Pro-Syrian Lebanese government has just resigned. This keeps getting better and better.