While Google continues to tweak the interfaces of Apps and Gmail not everyone agrees all changes are improvements. For some reason, I've been unable to retrain my brain to understand the Gmail toolbar buttons, which now have icons instead of descriptive text. If you want the old text buttons back, you have the option to switch them in Gmail's settings.
To toggle the buttons back to text, head to Gmail's settings and, under the General tab, scroll down to "Button Labels". Click on the radio button next to "Text", save your changes, and head back to the inbox to see the new (old) buttons. Enjoy!
