I have a Korg nanoKontrol and is really happy with it, mainly because it is super cheap. the most annoying thing about it is that it loose the connection very easy.
I have gotten around the issue that if a midi device is disconnected and then reconnected when using one of the MIDI nodes, I need to restart vvvv.
So I would like to put forward the feature request that the standard midi nodes could reconnect to the midi interfaces, if they are disconnected and reconnected while vvvv is running.
(I know vux is working on the ultimate midimapper but sometimes a simple node is all that is needed, and then it would be great if they were robust)