Wizag’s Twitter Trend (App Store link) is a free iPhone app designed to do one thing – make it easy to see what people are talking about on Twitter. 

The app lets you discover Hot, Rising and Emerging topics from thousands of tweets, so you can see what’s happening in one glance:

• Hot: Most popular topics in the last 24 hours
• Rising: Fastest rising topics in the last few hours
• Emerging: New topics just appearing in the last few hours.

According to Wizag, more analysis and discovery features are in the works. They’re looking at offering Personalized Twitter Trend Discovery Accounts (PTTDA).

The personalized view is expected to let you discover Hot, Rising and Emerging topics from just the people you follow.