Mailplane, a Gmail application for Mac OS X, has been updated with several improvements including the ability to hide ads.
NEW: 'Hide Ads' Preference You can now hide the sponsored links in Mailplane. Just turn on the 'Hide ads' setting in Preferences > Tweak UI.
NEW: 0Boxer Plugin 0Boxer is a plugin for Gmail. It turns "inbox zero" into a game. You get points when you answer, archive, or delete email.
NEW: Improved External URLs All links inside a window opened with Command-Click open inside Mailplane instead of your default web browser. For security reasons: When a window contains 'non-Gmail' content, the URL is displayed in the status bar.
NEW: New message window title now contains the account name. When you compose a message in a separate window, you now see the current account in the title bar of the window.
UPDATED: Plugins The TrueNew plugin got some fixes and improvements. Thanks to the Mailroom Team for creating this update. Improved Rapportive integration, now supports Facebook and Linkedin
You can try Mailplane out or purchase it from the link below for $24.95.