wow, heated tip injectors already in production? can you give a link ?
i seen only one sample from Delphi some years ago, and i do not know, if it was installed to real cars.
Delphi Multec 3.5 Heated Tip Port Fuel Injector
http://delphi.com/pdf/techpapers/2009-01-0615.pdf
http://delphi.com/pdf/techpapers/2012-01-0418.pdf
i know that Bosh makes heated fuel rail with usual injectors.
i was trying to made heating for fuelrail, it was effective for starting on pure ethanol up to about -5C, for colder temperatures - still bad.
also heating of all fuelrail takes too much power from accumulator, it is critical at -20C for example.
and many cars has fuelrails with return line, so heating has no sense...
additional gasoline tank was very simple and cheap solution and works very good on any cold
anyway, pure ethanol not become popular here (now i working mostly for export) and all this devices not needed now, but maybe later...