i found the NDPlus at the hardwarepage at www.netduino.com/netduinoplus/
best regards
NDFan
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Update: Folowed this thread http://forums.netdui...k-v42-sdk-beta/ - I needed the beta SDK which was n't mentioned on another thread for the upgrade. It is a shame that website - does not have all the possible downloads on the downloads page and the hardware page does not have all the hardware - where is the N+ on the hardware page????????