An agreements not to compete is a contract between you and your employer, and therefore the law of contracts applies. Whether a covenant not to compete is enforceable depends on several facts. In a case like this, two big issues will be whether the agreement was reasonable in duration and scope.
If a court finds the agreement enforceable, then the employer can and often will go to court seeking damages. In general, the damages will be equal to the employer's loss of profits. If they can prove what their gross profit would have been in the absence of a breach, then the exposure can be significant.
Obviously, these cases can be fairly complex and fact-intensive. This answer should not be taken as legal advice. If you need an opinion specific to your situation, then it would be wise to set up a consultation with an attorney. I can certainly give you an appointment if you decide to do so.
Answered on Feb 04th, 2013 at 7:49 PM