>> Are there any apps in the app store that are currently built using this technology?

uSquish, the simple example game included in the LambdaNative repository, is available as a free download on the Apple[1] and Google stores[2].

[1] https://itunes.apple.com/us/app/usquish/id647308142 [2] https://play.google.com/store/apps/details?id=ca.bccw.usquis...

PS: I am not from the LambdaNative team.