Comment Background information on Delay Tolerant Networks (Score 1) 42
Related links for this article:
DTN Research Group: http://www.dtnrg.org/wiki
lots of docs: http://www.dtnrg.org/wiki/Docs
overview presentation: http://jeroen.massar.ch/presentations/files/CCC2007-DTN-Upgrading-Martian-Carrier-Pigeons.ppt
The book: http://www.amazon.com/dp/1596930632
Wikipedia: http://en.wikipedia.org/wiki/Delay-tolerant_networking
Source code: http://dtn.dsg.cs.tcd.ie/sft/ltplib/
Oh and yes, theoretically this extends the Internet in the same way that various other protocols do, eg 6lowpan etc.
And yes, as it is store-and-forward it looks an awful lot like SMTP.
Enjoy