Just an FYI since this detail may be misleading to many...
Isn't the upgrade/maintenance cost for Flex 3 + Charting aka
"Professional" $299? ($99 is for standard)
(Or has this changed?)
Q: If I purchase Flex Builder 2, am I eligible for an upgrade
to Flex Builder 3?
A: To be eligible for a free of charge upgrade to Flex 3, you
will need to purchase maintenance along with the purchase of Flex
Builder. Effective November 1, 2007, you can purchase maintenance
with Flex Builder 2 for $99 US which makes you eligible for a
free-of-charge copy of Flex Builder 3 Standard edition when it
ships. Also effective November 1, 2007, you can purchase
maintenance with Flex Builder 2 with Charting for $299 US and
become eligible for a free-of-charge copy of Flex Builder 3
Professional edition when it ships.
http://www.onflex.org/ted/2007/10/flex-3-beta-2-lower-price-flex-build er.php