When Apple announced the new MacBook Pro at the end of February, there were just two Thunderbolt peripherals featured: The LaCie Little Big Disk and the Promise Pegasus. Both of these storage devices were on display at the NAB Show in Las Vegas last week, and each appeals to a different market segment. The 2-drive Little Big Disk is a portable matched up with the MacBook Pro, while the Promise Pegasus is a 4- or 6-drive desktop RAID system. Promise expects to deliver the Pegasus to the market sometime after the summer.