Dropping 'IBM' not 'ThinkPad' or 'Think'
Granted that I'm only reading the same press release as you, but I says that Lenovo is removing 'IBM' from their 'Think' products. I imagine that ThinkPads will still be ThinkPads, just not IBM ThinkPads.
And it's not just hardware, but all the associated ThinkPad software... like the new 'ThinkVantage Access Connections' software that I downloaded used to be 'IBM Access Connections'