Instawallet has always only been meant to keep spare change for quick transactions. For the longest time you could type into google site:instawallet.org/w and g

Instawallet has always only been meant to keep spare change for quick transactions. For the longest time you could type into google site:instawallet.org/w and get a list of URLs with money in them, it's not secure. Neither is Strongcoin who had all their wallet labels leaked recently, some of which users had decided to type in the hints for their key passwords. If I remember correctly Instawallet is a ruby/rails app run by the same people who do Bitcoin-Central.net. If you look at their other app Instawire you see lot's of ruby gems used, in a financial application, not good. EDIT.. bitcoin-central.net is also down