"[presumably of iPhone apps, but possibly of Mac apps, not clear].”
I assume it's iPad apps - launched early April, 2010, on March 31, 2011 there were close to 76K in the store. As of today...
The Nexus 7 sold 750K in its first quarter.
A master MRU list for documents (a small tile in the empty space that opens a drop down list?), and/or perhaps one list for each app/tile that requires one - similar to the list you get when you...
Change the default View in File Explorer to "Content", should be much easier to tap than "Details".
Just to partially answer my own question - there's now an I/O benchmark on youtube for the 64GB Smart PC:
CrystalDiskMark result - 77, 77, 6, 7 read; 16, 11, 1, 1 write (MB/sec)