K... depth isn't reliable, not because of the platform but because the brokerage houses have gamed the system - things like bid stacking and posting trades "anonymously" effectively eliminated this tool from my toolbox.
- and do you really need to send me into a rant over the "decent news" comment you made...?
That said, the switch from etrade to itrade didn't change what I think is already a top notch service - so give it a go!
Btw, on the platform services - I ran a very simple Linux set-up for years and it ran flawlessly until I fried the MBoard - I now run it on my HP laptop (vista) now and again but I mostly use Stockcharts on my iMac which IMO is my favorite set-up.
News 
Market Data 
Discover 
