To turn off spell check on iPhone (iOS4) ,
Go to Settings -> General -> Keyboard
Now set Auto-Correction OFF

Smokescreen is an open source project aiming to bring flash content on iPhone and iPad without installing any flash plugin.
According to Simon Willison, here’s how it works:
"It runs entirely in the browser, reads in SWF binaries, unzips them (in native JS), extracts images and embedded audio and turns them in to base64 encoded data:uris, then stitches the vector graphics back together as animated SVG."
To enable flash content on iPhone and iPad, site developer need to include some Javascript code which will be doing all the work described above. To read more about smokescreen, click here

Charging your iPhone in closed carrying cases may generate excess heat, which can affect battery capacity. If you feel that iPhone gets too hot when you charge it, take it our of carrying case while charging it.

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If you are at the bottom of a website, SMS, notes or email message and want to go to top quickly. You don’t need to come back all the way to top by scrolling. you can simply tap on the top of status bar to come back to starting of the window.

To ensure that iPhone is using minimum power, you must press home button before locking iPhone so that no application is running. This is true for applications such as Google maps, GPS or safari. These application keeps on running in background depending on the type of implementation.

It’s not recommended to charge iPhone/iPod using car charger very frequently. In case if you happen to do so, buy a charger from trusted manufacturer and always unplug iPhone/iPod when you start or stop car. That’s usually when electrical spikes occur.

Haw many times did you succeed to throw a crumpled piece of paper in to dustbin? Have you become addictive to this? If you are getting bored in office and your boss is not around. You and your colleague have competition that who can make it in a small trash. If you like doing all this then Paper toss from BlackFlip Studios is the game for you.
Game includes

1. 3 level of difficulties
2. Innovative flick control
3. Very real and crisp sound of office environment
4. Verbal abuse from angry co-worker
5. Global score.

iPhone is huge success in countries like US and UK. It’s not only Apple or iPhone but carriers like AT&T are also sharing this success together. If you see other side, country like India, where subsidy is not provided by carriers and customers are paying big amount to buy iPhone. iPhone is not a success at all.
It may not be a very wise decision for the users to throw 600$ for iPhone when they can get a smart phone in 300$ or less. Of course there will be a difference of quality that iPhone delivers than those of other smart phones.
Less demand of iPhones could be one of the reason for not selling iPhone 3GS in such countries. Apple is probably planning to launch a cheaper version of iPhone to re-enter in such countries. It may be a compromised version in terms of hardware and may have options for WiFi, 3G, front camera or storage capacity. There are rumors like Apple is launching a cheaper version of iPhone in coming July’10.

iPhone usages lithium based battery. It is important to keep electrons moving occasionally for such batteries. Be sure to charge iPhone/iPod fully and then running it down completely at least once a month (One charge cycle per month).

WordWeb dictionary is available in App store for free. Dictionary is collection of around than 2,85000 words, phrases and derived forms. Few highlights of this app

1. Includes many proper nouns, compounds and phrases

2. Fast pattern-matching search (*, ?, vowel, consonant, select word types)

3. Bookmarks, recent and random words

4. Cross-reference to other offline and online references (e.g. wikipedia, google)