Canon confesses to 7D ghosting under certain conditions
Perhaps not wanting to "ruin" the 7D the same way they "ostriched" the 1D Mark III issues, Canon has made an early confession, that some users may experience some image "leftovers" during burst mode shooting.
Read all about it via Galbraith, Imaging Resource et al. Also at BJoP.
Some early forum reactions at Photo.net, Canon Rumors, and here is a "smoking gun" type of a post from the dpreview forums of two weeks ago.

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