Here is additional QCD reporting guidance relative to the January, 2011 option to designate a QCD for 2010:

http://www.irs.gov/pub/irs-tege/rne_se0111.pdf

Note that election to report such a January, 2011 QCD distribution on the 2010 return also results in:
1) Lowering the 2011 RMD because the 12/31/2010 IRA value will be reduced by the January QCD
2) Increasing the tax free portion of any TIRA distributions taken in 2010 including 2010 Roth conversions for those with basis in their IRAs. The lower 12/31 value will increase the tax free portion.
3) Note that there is no difference in custodian 1099R reporting than in prior QCD years.