Extremely appreciated. It's funny: I proposed to Olavi Toivianen almost to a T what you describe, when I was in Santa Clara last December (I had not seen your work). He lit up like a kid in a candy store. Don't know the last time I saw a Finn so excited.

EDIT: a caveat-- what about an additonal field besides suggested donation, for Actual Donation? The user would enter his/her own value.