New feedback from Outlook.com
The inbox and basic format is essentially impossible to navigate. Your developer needs to be fired. There is no "select all" option when viewing search results, which meant I had to spend a ridiculous amount of time individually selecting each message to delete. When I was finished and wanted to return to the inbox (after doing a search) I realized my difficulties stemmed from the fact that there was no longer a top navigation bar of any sort- why did you take it away? It took me forever to find the option to exit my search.
Please don't make things so difficult to find. Your developer may call it "streamlined" or something like that, but it is very unfriendly towards the user.