Netsukuku FAQ --> http://netsukuku.freaknet.org/files/FAQ
About the scalability of Netsukuku --> ["Netsukuku scalability"]
Does Netsukuku use the current Internet Infrastructure?
No. The current preferred way of connecting to a Netsukuku networking is via adHoc Wifi.
What sort of performance does Netsukuku have? Is it any good for voice chat / video chat?
No answer currently.
Will Netsukuku be ported to PSP / Nintendo DS / wifi phones / linux PDAs etc...
Ports have not yet been created, but should be easy. See the FAQ.