The Piazza poster, Dulsi, made me aware of this idea of booster packs now being introduced into D&D. I have to say that I am very sceptical about this. I Cyber-Dave's post over at wizards.com sums up my feelings on this concept quite well. Fortune Cards are less problematic than card elements in Gamma World (and possibly also in the upcoming Ravenloft game), since the former can be ignored.
"Fortune Cards: Cards in booster packs that include random benefits for characters. Adds extra "fun and power" for characters. Not an extra level of powerups, an extra level of chance and randomness."
When I heard that WotC were planning to publish Fortune Cards, what first lept to my mind was the concept of Chance Cards, something that Dave Arneson started to use in his D&D Blackmoor Campaign in 1974. This was a rather different concept however. The Blackmoor Chance Cards were randomized story elements that were to be drawn once a year and which are detailed in the First Fantasy Campaign. As Arneson relates, The Great Peasant Revolt and the Raid from the Duchy of Ten were prominent examples of how the Chance Cards affected the campaign. Perhaps something like this would be worth looking into for WotC as well?