Looks like it will from the screenshots (https://4.bp.blogspot.com/-HeFnmVgMiJ8/WMDL3f4TQgI/AAAAAAAABiM/4WEvlteH1Q4wGfI8r4sNl2n5ELNVQyhbgCLcB/s1600/Gmail%2BAdd-

Looks like it will from the screenshots (https://4.bp.blogspot.com/-HeFnmVgMiJ8/WMDL3f4TQgI/AAAAAAAABiM/4WEvlteH1Q4wGfI8r4sNl2n5ELNVQyhbgCLcB/s1600/Gmail%2BAdd-ons%2Bstill.png https://4.bp.blogspot.com/-HeFnmVgMiJ8/WMDL3f4TQgI/AAAAAAAAB...) - each app will have it's own icon and hooks into emails/threads. I too have built a few gmail integrated apps and this will be super nice and convenient.