Call them mini-notebooks, mobile Internet devices, netbooks or whatever, the ultraportable market got a little more crowded today. Dell announced it is joining the likes of Asustek, Lenovo, MSI and Acer with its own mini notebook. Dell wouldn't release any details but information has been floating around the web for a couple of weeks. The device is reportedly to be named Inspiron Mini 9 and come with a 1.6GHz Intel Atom processor, SSD support and up to 1GB memory. The launch date is expected to be later this week but Dell is remaining mum on any further details.