Adobe Labs made the Camera Raw 4.5 plugin for Photoshop available at the end of last week. This plugin gives Photoshoppers easy access to raw image formats, the format in which most professional and prosumer digital cameras shoot.
This version is only a release candidate. The plugin is well tested but needs more community testing to put it through its paces on multiple platforms and various hardware. Eventually Camera Raw will be distributed to all Photoshop users, according to the Adobe site.