I see what you mean. Under IE it has all the child processes but it doesn't give the memory usage for each. It just increases the amount for the parent for each child process. Under Spartan it shows the parent at the top with the name of Project Spartan and way below that are the child processes labeled Spartan.
I just don't understand what Hughlle was talking about. I opened up 5 tabs under both IE and Spartan and they totaled close to the same amount of memory. I don't see Spartan as any more hog of resources than IE. Mine definitely didn't use 150 meg for each tab. I think I'm going to like Spartan and it will replace IE for me, even now.
Biggest problem with Windows 8, beyond people's initial ire with Metro, was not providing a seamless, clean, transparent (or at least not obvious) transition back and forth between touch and desktop apps. That being said, in desktop mode 8 is a solid OS and does file I/O substantially better than 7. I think a lot of 8's heartburn could have been mitigated had Microsquish built up a better ecosystem for touch apps, that still hasn't changed for 10 TP. Windows 10' focus seems to be more about the transition between multiple devices. Beyond Cortana and Spartan - both highly incomplete at this time - I really don't know what it buys for desktops.
Sadly I cannot revert from 10049 since i used the Cleanup tool to rwmove the windows.old and other unused files. 10049 is so bugridden that I have to reboot almost after every session. I know that its a preview, but this is ridicolous.