>
> While I'm asking questions I'll add one more regarding the getaddr 
> message.

Talking to myself here.  I just sent this message then found this 
brilliant set of articles in the Dev & Tech forum which answers the 
question very nicely: *https://bitcointalk.org/index.php?topic=41722.0 
<https://bitcointalk.org/index.php?board=6.0>
*
Anyway just as an FYI I've been running v0.0.0.0.0.0.0.0.1 for about an 
hour.  It's only running 10 concurrent connections due to girlfriend 
complaining she couldn't watch youtube but here's some early results.

New nodes: 19319 // node address discovered but no contact attempt made yet
Contacted nodes: 754
Uncontactable nodes: 3253
Limbo nodes: 9 //not as exciting as it sounds, just nodes with connect 
in progress
Total nodes: 23335 // about 5000 from initial IRC discover, the rest are 
from getaddr

Versions: {
300=1,
31900=7,
31902=1,
32000=2,
32001=7,
32002=22,
32100=100,
32200=24,
32300=277,
32400=317,
32500=2}

Fails: {
ConnectException: Connection refused=377,
IOException: Socket is disconnected=87,
SocketException: Network is unreachable=2,
ProtocolException: Error deserializing message =1,
NoRouteToHostException: No route to host=115,
SocketException: Connection reset=149,
SocketTimeoutException: connect timed out=2521}