Adding my concurrance. 5x7 tabs is more elegant than before, but still being forced to have 2 pages is frustrating and means you're seeing less items per page than you were with the old system. In fact now there are 4 inventory pages instead of 3 because for some reason we need 105 key item slots.

I see no reason why we can't display all 4 tabs at once like before. You don't even have to get rid of the current design, just add an extra option. Something like "Standard, Expanded and Full"