Whether you have noticed or not, I have found the new progress bar for GMail attachements very useful. I often send multiple attachements through my GMail account. Previously it was hard to know when all the attachements will be uploaded and I can press the Send Now button. Recently I have noticed that after selecting an attachment file, it shows progress of uploading the file. If I select multiple files, progress bar each file is shown. That’s great. It says why I should be with GMail.
Thank you GMail team!