Since Apple’s iTunes for apps, almost everyone has jumped on the App-store bandwagon. And now, Verizon wants to build its own app store, and is planning a July 28 event to entice developers to its platform.

Verizon’s Ryan Hughes, VP Partner Management, said in an interview Friday that the network operator’s app store will be the sole marketplace on devices sold by the company, meaning stores such as Research In Motion’s BlackBerry App World or Microsoft’s Windows Mobile Marketplace won’t get placement on Verizon handsets unless a consumer downloads them. Of course, that is not going to please manufacturers and probably not developers either. But Verizon is going to try nonetheless.

With BlackBerry, Palm, Android, and Apple, all having their own working application stores up and running, and Windows Mobile’s right around the corner, Verizon is not only late to the party, but pushing their luck with their partners. Verizon is already infamous for locking down their handsets. And kicking off manufacturer app stores may very well be a step too far.

Verizon will still offer the Brew platform on its feature phones, but has now turned its energy to building out a Verizon app store for smartphones. Verizon is aiming to launch their application store by the end of this year.