http://www.pokemon.com/us/news/

thanks to angelica, i found that on the site she told us about, there have information on obtaining a SHINY Pichu (yes it is guarenteed to be shiny ). All you have to do is go to gamestop (with mystery gift enabled of course) and get your special pichu via wifi. And a quick note, make sure you keep this pichu if you plan on getting heart gold or soul silver, i know i am! This special offer starts on Jan.30th and ends on February 14th (if im not mistaken)

For info on how to unlock mystery gift, go to: http://wiki.answers.com/Q/How_do_you_get_mystery_gift_in_pokemon_diamond_and_pearl
Other sources: http://friendcodes.com http://google.com

Thanks dor reading

nope i got it its a pikachu colored pichu thats what it says on the site it can unlock a spiky eared pichu in HGSS

Also next is a Jirachi on Feb 17th in gamestop