We all love to exploit the gadgets and gizmos that we use, to their full potential, and iPhones are no exceptions. There are hundreds of applications available, which include spreadsheets, organizers, games, and more. You can buy your favorite applications from vendors online and even spend time searching for some free iPhone apps. While most iPhone apps are useful, some have a distinct edge over the rest. After all, some serious organizing and planning is also part of our routine. Let’s run through a list of some that can be considered as the top 5 iPhone apps worth downloading.

To twitter or not to twitter? Tweetie is a great iPhone application to use. It is considered a great marketing tool today, and is notably one of the best twitter clients available. With this app you can manage multiple accounts, gather information of other users and save your searches. This is a great start to building your list of followers and managing your relationship with them. With a user-friendly interface that can be customized as well, Tweetie allows you to reply to followers, retweet, and post photos through twitpic also. With all these neat features, this really grabs the top spot for all Twitter users.

Omnifocus is another tool that won the 2008 Apple Design Award for Best iPhone Productivity Application. If you are a stickler for GTD or Getting Things Done methodology, this is a good stand-alone application. It helps you to keep track of important tasks. You can organize your daily schedules, agendas to discuss at work, things to do, and even manage your shopping list. All this data can be synced with your Mac. Omnifocus can even locate the grocery store closest to you and create instant shopping lists.

Another intriguing iPhone app that you will love is ShapeWriter Free. Yes, this is a free application but has revolutionized the way to enter text on your touch screen. You can compose words with your finger by tracing from letter to letter. ShapeWriter recognizes the word and displays it on the screen. Each stroke will produce a new word while spaces are inserted between words automatically. You can also store notes and send emails with the application. The ShapeWriter keyboard is located at the bottom half of the screen.

If you are used to Flickr, then Mobile Fotos is the best way to manage photos on your iPhone. The application allows you to upload and manage photos to your Flickr account and access photos from your contacts. Mobile Fotos has a powerful search function to find photos from your current location. It can play videos and slideshows, and supports multiple Flickr accounts. The application has direct access to iPhone’s built-in camera. You can even share photos via email or twitter, which is of course, good news for twitter users once again.

Fitness freaks and gym newbies can gear up for their favorite workout with GymGoal ABC. This is a free iPhone app that features 280 animated exercises. You will be surprised with all the equipment to guide you through your exercise routines. One great feature of this iPhone application is an integrated map of muscles. You can select a specific area you want to work on and run through a routine designed for that specific muscle group.

There are probably several that can’t be given due justice in this list of top iPhone apps. This is definitely only the tip of the iceberg. Depending on your lifestyle and your budget, make sure you buy applications that would really be worth it. With the emergence of so many iPhone application developers, you have a wide choice, so go and take advantage of this opportunity.