Pongs aren't very important for the network. They are used to inform leafs of other ultrapeers that they can connect to if one ultrapeer connection fails. However there are a couple of other ways to collect ultrapeer addresses, so pongs are a little redundant (on the other hand sending pongs is more efficient than a GWebCache request).

The push timeout changes have not been made yet. Adam said that the LimeWire developers will very likely remove the timeout altogether and accept a Push connection when it is established. Maybe it's going to happen in 3.0.

There are quite a number of nice features waiting for their release. Making it possible for queries to reach most of the network seems to have the highest priority at the moment. Among other things, there is traffic compression, and improved selective querying scheduled for release.

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Und wenn ich lang genug gelebt hab, dann sterb ich und bin tot

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