* Adds a performance penalty over straight Mapbox-GL.
* No support for animations / flyovers / etc.
* You have to give width/height in pixels for map size.
* Can't introspect map to get layer / point data w/o hacks.
Iconic looks really nice, and I especially like the component documentation.
When it comes to the overwhelming number of mobile js frameworks its hard to get an idea of speed without running each of the demos individually and comparing. Do you have any rough stats compared to Sencha?
I have a pretty short commute(5km) and live in Halifax but with some good thermal underwear, gloves, jacket I was able to ride all winter except for about 20 days. On 23 mm slicks too but I'm getting something better this winter.