If you've been waiting for the first Blu-ray titles to ship, you're going to have to wait a little longer. According to an article at Reuters, the first batch of releases has been pushed back until June 20 to coincide with the launch of Samsung's new Blu-ray Disc player.
While high-definition DVD titles trickle into stores, the arrival of the first titles in the rival Blu-ray Disc format has been pushed back by a month until June 20.

Sony Pictures Home Entertainment president Benjamin Feingold said his studio's first batch of Blu-ray releases will be ready May 23, as planned.

"But the majority of our retail base and hardware partners have requested that we reconsider this date to better coincide with the first commercially available Blu-ray-compatible hardware," Feingold said.

The decision to hold off shipping Blu-ray titles to retailers comes several weeks after Samsung announced its first Blu-ray player wouldn't arrive in stores until June 25, a month behind schedule.
I'm sure Toshiba is enjoying this. Of course, its not like they didn't delay the launch of HD DVD... twice. In any case, if you'd like to read more, the entire article can be found here.