Those of you who follow our Twitter feed have already heard this, but we just got word that Lenovo will officially announce its new ThinkPad T400s next Tuesday, June 23rd.

The ThinkPad T400s is an updated version of the T400 but with updated specs: new, faster Intel Core 2 Duo processors, DisplayPort, eSATA, and a 5-in-1 media card reader. All this new hotness is wrapped in a 0.83″ thick chassis, quite a bit slimmer than the 1.12″ T400.

Given the T400s’ new svelte case, the case for getting the more expensive X301 becomes much harder to justify. The T400s is not much thicker, but has a full-powered processor and thus has much better performance.

Image courtesy of Engadget.

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