The August meeting of NOVALUG will be held in Arlington VA in support of a picnic honouring the birthday of Linux.
Originally, ARPANET ran the Network Control Program (NCP). The NCP had many limitations (including address space) and was in time superseded by TCP/IP. However, users were reluctant to make the transition. So, in 1982, Vinton Cerf and Jon Postel brutally forced users to switch from NCP to IPv4 by programming the Internet gateways to block all NCP traffic.
Now, almost 30 years later, it is the IPv4 address space that is approaching exhaustion. If current IPv4 address allocation policy continues, then IANA will allocate its last remaining /8 block in 2011 06, and the RIRs will allocate the last of their IPv4 addresses in 2012 04. Yet the demand for addresses will only grow due to the rapid proliferation of hand-held devices and the ongoing roll-out of Internet services in the third-world.