I don't have any pictures right now, but I just hatched mine into a cute babytchi. I fed him some food and played several games with him :)
EDIT, He just evolved into tonmarutchi! The guy that looks like a shark! :D :D :D :D :D
Neglected my Tama-go adult for two day's. Checked on it and saw it was dead. I pressed A and C, when the egg hatched I checked the history part of the book icon and saw that the tamagotchi died as a Mametchi. I really don't think Mametchi is an oldie on the Tama-go.