For a long time, I struggled with a similar view. The lines for this are blurring very fast though. Example - Amazon's kindle is more or less a single purpose system - but runs linux, lasts for days on battery, has good RAM and a relatively powerful processor.
One useful metric is how far something is along the "general purpose computer - appliance" continuum. Something can be quite powerful with lots of resources, and still function as an appliance that people do a relatively restricted set of things with.
Great product - Will be really handy in BLE firmware development as well I guess. Somehow I thought this was an implementation of "IPv6 over Bluetooth Smart" though :)
"This announcement does come with a few caveats: the chipset is certified, not the module. Each version of the module must be certified by itself, and there are versions that will never be certified by the FCC. Right now, we’re looking at the ESP8266-06, -07, -08, and -12 modules – the ones with a metal shield – as being the only ones that could potentially pass an FCC cert."
FWIW - India has one of the best money transfer infrastructures [IMPS/NEFT/RTGS]. IMPS is my favourite - it taps into the ATM machine backbone and enables 24x7 instant payments at almost zero cost [ http://en.wikipedia.org/wiki/Immediate_Payment_Service ]. The problem is more than the lack of infrastructure - Most folks are a bit apprehensive about using Cards or Online banking capabilities for fear of theft.