you could always just grab a Mini Z IC Tag and find a way to replace the one on the dNano
we're on the same page as i think there should be more affordable, more convenient solution, yet i'll take an objective standpoint as well and consider the obstacles for an OEM in the 2nd year after product release. lots of things that could've been done better but hindsight is 20/20. hopefully they'll come up with something that will satisfy consumers and meet their requirements as a company at the same time