Maha, has tons of cool animation and lovely UI. The Maha will bring the windows phone 7 metro UI to iPhone. The client has almost all the option that the best twitter client should have.

Some amazing features:

• Support for unlimited account
• Ability to add geotagging to tweet
• Tips to complete the type of nickname
• Full-screen browser integrated
• Integrated map
• AutoRefresh
• Ability to upload multiple images
• Auto-save of the post is not published

Maha supports all iDevices, iPhone, iPod touch and iPad but requires iOS 4.0 or later. You can get the application for the $0.99 from iTunes app store.

Maha is a Twitter client, focusing on animations and interface. Other apps give you themes to select, but never give you a full customization. Maha allows you to pick whatever color you want, tune your client with your taste! With gorgeous animations, this app is also lightning fast , which can perform smooth animations even on iPhone 3G, give you another level of user experience.