In Short

The BlackBerry Pearl Flip 8230 was among the first clamshell-style BlackBerry devices. It had a similar SureType key layout to the Pearl’s, but had a recessed trackball. Most significantly, The BlackBerry Pearl Flip had an external display which would allow users to look through incoming messages using the volume keys. The BlackBerry Pearl Flip is the CDMA variant of the original GSM version, the 8220. A GSM version with Wi-Fi, the Pearl Flip 8220, was also released. The BlackBerry Pearl Flip 8230 was released in February 2009.