Ryan Seacrest Slangin' iPhone Keyboard on the Streets -- Suck It BlackBerry!

Ryan Seacrest isn't fazed one bit by BlackBerry's lawsuit against his new tech company -- which just developed a BlackBerry-esque keyboard for iPhones -- quite the opposite ... he bragged about it last night on the street.

It's called the Typo -- an iPhone case with a keyboard attachment. Ryan co-founded the company that makes it.