Last night I tried to call a person with my Droid (2.1) from my call log, when I pressed the green call button next to the name in the call log, it called somebody else! It must be a software bug, because I am not the only one to experience this issue...
http://www.droidforums.net/forum/motorola-droid/22886-droid-calls-wrong-person.html
Please notify your software engineers or those at google and motorola of this issue if possible.