One of the ‘feature’ that plagued iPhone 3G owners when they upgraded to iOS 4.0 was unresponsive UI. This issue appears to be going away with the upcoming iOS 4.1 release expected on Sept 8 next week, Lifehacker posted a video test comparing an iPhone 3G running iOS 4.0 with one running the iOS 4.1 (likely the Gold Master release for developers).
Although not a scientific examination, it is clear from the video that there is marked improvement running iOS 4.1 on iPhone 3G. For all the added new features, iOS 4.1 is finally a worthwhile upgrade for iPhone 3G owners.
There are more than 50,000 apps in Apple’s App Store, many doubt if it is still possible to make money developing apps for the iPhone and iPod touch. If you are exploring programming for the iPhone as an option, the following frequently asked questions by beginners might be useful to you.
###1. What kind of app can be run on iPhone?
You can develop native app to run on iPhone, or you can develop web app that runs on mobile Safari browser on the iPhone. In general, iPhone app refer to the native app. iPhone native app is the only app you can sell on iTunes App Store.
Native iPhone apps are by far the dominant apps on the iPhone with native iPhone touch interface and experience. Many vendor develops native iPhone app for their website, such as Facebook, MySpace and NY Times. On the other hand, popular web apps customize for iPhone include GMail and Flickr.
iPhone keyboard’s Auto-Correction feature is time-saver and great help for people who are not used to touch typing. iPhone suggests word as you type when the word is not in the keyboard dictionary. You tap the “X” next to a suggested word to reject the correction, and iPhone will add your word into the keyboard dictionary. Your word will then not show up for correction again.
In due course, you have high probability of messing up the keyboard dictionary. For example if you spell “dont” without an apostrophe and reject the suggested correction for a few times, iPhone keyboard will add “dont” into the keyboard dictionary and will not suggest correction for you subsequently.
To erase all the words you added to the keyboard dictionary:
**Settings > General > Reset > Reset Keyboard Dictionary**
Reports has been appearing last week that the new iPhone 3GS could be prone to overheating. It remains to be seen if it is due to incorrect usage by users, a design defect on Apple’s part or a common problem to all smartphone devices.
Apple actually posted a support article last modified June 25 that offers tips on [how to keep iPhone 3G and iPhone 3GS within acceptable operating temperatures](http://support.apple.com/kb/HT2101).
Operate iPhone 3G and iPhone 3GS in a place where the temperature is between 0º and 35º C (32º to 95º F). Low- or high-temperature conditions might temporarily shorten battery life or cause the device to temporarily stop working properly. Store iPhone 3G and iPhone 3GS in a place where the temperature is between -20º and 45º C (-4º to 113º F). Don’t leave the device in your car, because temperatures in parked cars can exceed this range.
![Adobe Flash Player 10 for Smartphone](http://sanziro.com/wp-content/uploads/2009/06/adobe-flash-player-10-for-smartphone.png)
Adobe, in its [Q2 FY2009 Financial Results presentation](http://www.adobe.com/aboutadobe/invrelations/09q2analyst/) (under Section 13 titled ‘Platform’), highlighted that Flash Player 10 for smartphone will be available in beta for developer at Adobe MAX conference in October.
Google Android, Nokia Symbian OS, Windows Mobile and the new Palm webOS will be among the first devices to support web browsing with the newest Flash Player.
Apple iPhone and RIM Blackberry are the two notable names missing. But do we really need Flash Player on iPhone? It has been over two years of iPhone without Flash and we certainly do not miss it. Flash Player is good to have provided it does not jeopardize the overall performance and responsiveness of iPhone. What do you think?
* Since this is the first push notification app on our iPhone, a new “Notifications” item appeared in the Settings app after we run AIM. Find out the [basics on push notifications](http://sanziro.com/2009/06/apple-explains-the-basics-about-iphone-push-notification-service.html).
iPhone OS 3.0 is recommended upgrade for all existing iPhone and iPod touch. All the [new features and enhanements](http://sanziro.com/2009/06/2-sites-to-learn-about-iphone-os-30-new-features.html) are well worth the effort of upgrading the firmware via iTunes.
Apple has given you one good reason to upgrade, iPhone OS 3.0 addressed **38** security vulnerabilities in earlier firmwares. Read Apple’s support document on the [security updates in iPhone OS 3.0](http://support.apple.com/kb/HT3639).