By Euan Rocha and Sinead Carew

NEW YORK (Reuters) - Research In Motion Ltd on Wednesday kicked off a string of global launch parties for a long-delayed line of smartphones it says will put it on the comeback trail in a market it once dominated.

The new BlackBerry 10 phones will compete with Apple's iPhone and devices using Google's Android technology, both of which have soared above the BlackBerry in a competitive market.

They boast fast browsers, new features, smart cameras and, unlike previous BlackBerry models, enter the market primed with a large app library.

(Writing by Janet Guttsman; Editing by Frank McGurty)