With the launch of iPhone OS 4, your iPhone (3G, 3GS, 2nd and 3rd generation iPod) will become more power full than ever. Here are keynotes of the presentation

Most talked new features:
1. Multitasking : You can run more than an application simultaneously. So now you’ll be able to make a Voice over IP call while playing a game or checking email, while preserving battery performance.
2. Folder : Organize application icon into folders with simple drag-and-drop. Get faster access to your favorites and manage up to 2160 apps at once, many more than the current limit of 180 apps.
3. Better email: A unified inbox for all your email accounts. No need to switch from a account to another.
4. iBook: Buy books online, easy flip of pages.
5. SSL VPN Support: SSL VPN support in iPhone OS 4 gives users another way to securely access enterprise resources. These new protocols can even be leveraged to connect seamlessly to a corporate network via VPN on Demand. Forthcoming apps from Juniper and Cisco will support SSL VPN on iPhone.
6. Wireless App Distribution: iPhone OS 4 enables enterprises to securely host and wirelessly distribute in-house apps to employees over Wi-Fi and 3G. Apps can be updated without requiring users to connect to their computers.
7. iAd : Developer can make revenue through using iAd nicely integrated with Application.

Other features

• Game center
• Tap to focus video
• Larger fonts for e-mail, texts, and alerts
• 5x digital zoom in camera
• Bluetooth keyboards
• Spell check
• Persistent Wi-Fi
• iPod out
• Customizable wallpapers for the home screen
• Search text messages
• Choose image size in mail messages
• Recent Web searches
• Create playlists
• Gifting of apps
• Birthday calendar
• Wake on wireless
• File and delete mail search results
• Web search suggestions
• Rotate photos

It’s fun playing with pictures you like most. You can expand, move, rotate and do more with PhotoBoard. You can manipulate group of pictures by touch of fingers, as you do in real world by using PhotoBoard. 1. Move, scale, and rotate both board and multiple pictures at once with your fingers
2. Easy and natural interface
3. Take a high resolution screenshot of your board, it will be saved in your “camera roll” / “saved photo album”.
Photoboard is available on the iPhone/iPod Touch App Store. It is available in jailbreaked installer (1.1.4) too.

Podcaster allows you to subscribe, manage, stream and download podcasts directly to your iPhone and iPod Touch. Podcaster is now available in jailbroken iPhones. You can install it by using Cydia installer only if your iPod Touch or iPhone is running firmware 2.0 or higher. This application was earlier in Apple Store. It was removed after some time because it was duplicating the functionality provided in iTuens ( “Apple Says”). I don’t think that it is exactly duplicating the functionality.
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New iPhone software upgrade 2.2 will be rolled out as soon as it becomes stable. In this upgrade
1. Push e-mail to iPhone or iPod touch will be restored.
2. This upgrade will also improve on GPS functionalities.
3. We’ll see new Safari browser having search beside the address bar and it will be always visible.
I wish that we can have Copy and Paste functionality in coming upgrades. I don’t think this is difficult to implement, but still we haven’t have this important feature in it.

There will be some existing bug fixes. I don’t have exact detail as of now. I’ll write it here again as soon as I get some thing new.

What’s new in it
1. More color options.
2. Curved design
3. All-aluminum and glass design.
4. Personal DJ
5. Highly intelligent: It creates playlists by finding songs in your library that go great together
6. The accelerometer comes to iPod nano. Give it a shake to shuffle your music.

Earlier when I was using iPhone 2G, I was quite happy with the results. The touch experience was never so great in phones as it was is in iPhone.

Web Browsing, iPod, and a phone, it is no doubt one of the best phones present in the market. When I shifted to iPhone 3G, I was very excited about it. When you have older version in your hand you start expecting better in newer version.

After buying iPhone 3G, I was disappointed. I found following problems

1. Switching to Edge network while there is strong 3G signal present.

2. Call drop during the conversation.

3. It still has 2 M Pixel camera while there are 4 M Pixel camera mobile phone present in the market.

4. No video recording this time too.

5. No MMS in iPhone 3G.

6. Still there is no way to copy and paste some text so if you want to give some contact information to some colleague, you need to remember the contact information first then type it ?.

7. No second camera for video calls as it makes sense in 3G phones.

After having so much of drawbacks, I still have iPhone 3G and I can’t have another phone as I am used to of some great features it has. Now decision is your whether you want to buy it now or wait for newer version of iPhone.