I placed an order for a mini 9 this morning (went through pcworld.com), and a vostro A90 (it was on the site accessed through dell.com) around 10pm. The mini 9 was "processing" until about 10:45pm, when it switched to in production. The A90 processed quickly and is in production as well. Ship dates are 6/19 for the A90 and 6/22 for the mini 9.
I attempted to cancel the Mini 9 right after ordering the a90, but you can't do it online. I've sent them an email asking to cancel it, but i don't know if it will go through now that it's in production.