Maybe so but the ones that come right to my email inbox directly from xbox live...pressing those particular links renders an error message that you do not have silver light....
Of course you can always hunt for something on youtube and do a search and find it.....but that doesnt help me when i get those emails and just want to press the d*m link and watch it already and then go about my day!
Yes Light web browsing..i mentioned that as a CAPABILITY of the laptop doc...not as something it CANT do.

(you might have read wrong on that point).
Yes and no..the tablet doc would not be much use to someone who already had a tablet but a good tablet is at minimum $400. Realistically...a good tablet is going to be $650 and up..so.
If your "tablet dock" came in at $150 or less....then yes..i could see that being an attractive option.