NexusUI was presented at NIME 2014. From www.nexusosc.com:
“NexusUI is a JS toolkit for easily designing musical interfaces for mobile apps and web browsers, with emphasis on rapid prototyping (nexusDrop) and integration with Max/MSP (nexusUp)”
Link to related NIME article: Taylor et al. – Simplified Expressive Mobile Development with NexusUI, NexusUp, and NexusDrop (*)
CDM also wrote an article about it.