Entropy98 writes "Windows Live Messenger will be shutdown by March 2013 after nearly 13 years so that Microsoft can focus on Skype its recent $8.5bn acquisition. No word on whether users will be able to transfer their WLM accounts to Skype." Link to Original Source
Quantum Mechanics is a lovely introduction to Hilbert Spaces!
-- Overheard at last year's Archimedeans' Garden Party