First videos from PharoConf 2013 appear on the net. One video is about Tanker - an experimental package loader. It uses Fuel to do serialization and deserialization and will allow for faster loading.
Didnt know about the debugger menu item to serialize the stack to a .fuel file. Allows to serialize an error stack in case of problem and materialize the stack in another image to reproduce.
Nice - try that with other technologies out there ;)
Code for Fuel is already in Pharo 2.0. The Tanker project is on SmalltalkHub.