While we all wait for the next full version of OSX, Apple continues to update its current iteration of the OS.  The next big update, 10.5.7 will be released this Friday according to Mac|Life.  The next update will address a number of problems of which networking, bluetooth and syncing issues are just some of.  Until we get a peek at Snow Leopard in June, or so we suspect with WWDC, we will have to get these minor updates.  Be sure to check Friday for the update.