Any way to make Ubercart's cart block not cacheable by boost

Hey!

I enjoyed your presentation at the Seattle Drupal Conf. Solid presentation!

So I now have ubercart installed and working on my site BUT. . .

In some situations un-authenticated users, after adding items to their carts and continuing around the site, see an (cached) "empty" message in the cart block and cannot view thier cart contents through the block's title link, since the block thinks it is empty.

I the user adds another item to the cart they can continue to view the cart's contents and to complete the transaction, their cart's content is remembered even when the block displays and "empty message.

Is there any work around for this?
Should I be asking on the ubercart issue queue?

Thanks!