from Tom Igoe
(update) I have got this working, exactly as described in the Igoe post – The code is in EthernetPachubeTweeter_tz1.
Essentially, anything that originates from the Arduino is sent to a feed in Pachube. That feed has a datastream which has a trigger which tweets any new data which arrives.
The next thing to try is figuring out whether this can be done as a single line http: request in curl, and therefore, from Max – or any other source
(update) – this is slightly broken – check out the post about converting cosm to xively https://reactivemusic.net/?p=6843]