> IANAL, but standing alone, with no exchange of 'consideration', and only signed/stated by one party, it likely doesn't create much of a legal obligation. Tha

> IANAL, but standing alone, with no exchange of 'consideration', and only signed/stated by one party, it likely doesn't create much of a legal obligation. That's not always the case. For example: "The doctrine of promissory estoppel prevents one party from withdrawing a promise made to a second party if the latter has reasonably relied on that promise." (From http://en.wikipedia.org/wiki/Estoppel#Promissory_estoppel. http://en.wikipedia.org/wiki/Estoppel#Promissory_estoppel.)