A search of recently filed FCC documents has revealed that a new Iris Keyfob is in line to replace the current fob.
New Iris multi-button keyfob.
The new 4-button keyfob appears to be very small, 1.64″ wide x 2.12″ tall x 0.52″ thick. It will be powered by a single CR2032 battery. No further information is available as to what the functions of the buttons will be.
The package will include the Keyfob, CR2032 battery, Keyring, and User Guide.
No word yet on when this will be released, however if the recent reduction in pricing for Iris accessories is any clue it may be some time while existing stock is closed out.