Hi Bill,
I get all of my FrSky stuff from Aloft Hobbies now ... price is comparable to HK but Wayne's stock seems to be more current (and he ships much quicker).
I'll be trying the upgrade later today so i'll let you know. I don't expect any discernable difference at this stage because i don't have a current sensor yet and that seems to be the biggest change (as far as i can make out). It's actually still not clear to me if the v2.1 allows the FLD-02 to show maH consumed or if its just showing Amps. If its the later, its of no real value to me compared to v2.0. We'll see i guess.