Title on the Line:

Contenders: Research in Motion, Toshiba, , , Motorola, Notion Ink, Acer, Samsung, Nokia, Asus, MSI, Hewlett-Packard, Neofoni, Onkyo and Lenovo

Breakdown: It's a mix of heavy hitters and nobodies for this year's tablet battle. RIM will talk up its PlayBook; Samsung is rumored to be showing off a second-generation Galaxy Tab; Asustek has a slate with a slide out keyboard; Notion Ink may try to recapture CES 2010 glory with its ; and HP is expected to flaunt a WebOS tablet. It's .