As a holder of iPhone, there's a list of 10 most useful iPhone apps for you to view. Yes, the inner iPhone apps are powerful enough to entertain, however, a better assisstant would let us work more proficiently with iPhone. Why not utilize the whole functions of iPhone fully and easily? The top 10 useful iPhone apps will help us out.

1. iPhone Video Games:
Line Up Pro

Line Up Pro is a color matching game for iPhone advanced users to play. Click on blocks of 3 or more of the same color, as quickly as you can, before they overflow the board. But be careful! You only have 100 taps for each speed cycle.

Toy Story Photo Hunt

The toys are back this time in Disney Digital 3D . Toy Story and Toy Story 2 return to the big screen in a spectacular 3D double feature on October 2, 2009. In celebration, download Toy Story Photo Hunt for your iPhone and iPod Touch. Find the differences in dozens of photos from your favorite scenes in the films!

2. iPhone Streaming Media Application

CNN mobile - video

NOW you can get live streaming video of breaking news, the most important headlines of the day with location-based news, weather and traffic from the palm of your hands. With the NEW CNN App for the iPhone and iPod Touch, you can also iReport directly from your phone using the phone's advanced photo and video capabilities, all with just minimal advertising.

Rhapsody

Now you can tap into the entire Rhapsody catalog from your iPhone. Listen to any song instantly, tune in to Rhapsody Radio, check out the newest releases, and access your library and playlists wherever you go.

3. iPhone Sync App

Dropbox

Dropbox is the easiest way to sync your files online and across computers, and share them with people. This app works with the main Dropbox service, and is not intended as a stand-alone product. If you don t already have a Dropbox account, the app will allow you to register and create a free 2GB Dropbox account.

4. iPhone Location Based Software

Buzzd

buzzd is the world's first, real-time city guide app for the iPhone. See up-to-the-minute activity ("the buzz") at bars, clubs & restaurants around you. Tap on the places with a high "buzzmeter" and check out what's being posted from Twitter & buzzd right there, right now.

5. iPhone Aggregate News Reader

NetNewsWire Premium

NetNewsWire is an RSS reader for iPhone you can read news from the millions of weblogs and sites that publish RSS feeds. Because NetNewsWire syncs with Google Reader (Google account required) and with NetNewsWire for Macintosh and FeedDemon for Windows by NewsGator if you read an item on your iPhone, you don t have to read it again your Macintosh or other computer. It s automatically marked as read everywhere.

6. Social Network App

Tweet Media

Use tweet media to publish videos, audio and photos on Twitter! Designed with simplicity in mind, tweet media is a great way to share your personal media to the world!

7. iPhone Money saving App
Coupon Manager

A smart shopping tool to manage your coupons. You will never be confused by your large quantity of coupons and never forget to use them before they expire.

8. iPhone Weather Application
weather radar

The fastest, easiest way to view local weather radar on your iPhone. A single click and the Weather Radar automatically determines your location and finds the closest doppler radar. Animated, rich graphics show you the direction and progress of nearby storms and clouds.

9. iPhone Wallpaper App

wallpaper maker

With Wallpaper Maker you can easily create sharp looking wallpaper and add your contact information, a reminder, a favorite quote, or anything else to it.

10. Currency Apps for iPhone

iCurrencyX

A cool currency converter on iPhone & iPod touch. Set your primary currency and other currencies you often use, then you can check them quickly. Calculate currencies amount between any two currencies.