BIGINT Confusion Explained

I've known for some time that to work with BIGINT values from SQL Server in SSIS, you needed to store them in String package variables - but I never knew why. Now, thanks to an excellent post from Matt Masson on the SSIS team, we know why:

http://blogs.msdn.com/mattm/archive/2007/04/18/why-can-t-i-store-my-bigint-result-in-an-int64-variable.aspx

Thanks, Matt!