Hi folks,
I recently discoverd that by the end of February 2011 Red-Gate stops providing Reflector for free. Although their reason sounds obvious (they cannot work for free), I think many developers still rather prefer a free IL deassembler tool. Luckily, Scott Hanselman twittered about free open source alternatives. Those open source alternative IL deassembler projects are both based on the Mono Cecil project.
I would hereby like to share them with you:
Happy coding! Cheers!
PS. Of course I am very much interested in other free alternatives. Please post your comments if any 
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UPDATE 04/27/2011: On Twitter I heard @dotnetreflector say to @haacked that they are releasing Reflector v6 with no expiry date for existing users in May 2011! http://bit.ly/eW3D7O.