To jailbreak an iPhone 4 you need to download redsn0w. For better info go to youtube and search ' how to jailbreak iPhone 4 on (whatever your OS is .example: IOS 5).'
Quicktime, Youtube, and with the Skyfire browser, flash.
You would have to use the YouTube App for iPhones. You will not be able to upload a video from a mobile browser.
if you mean developement as in generations of iphones, then: 2008---- iphone 2g 2009---- iphone 3g 2009---- iphone 3gs 2010---- iphone 4 and if you mean application development (well paid job) then look it up on youtube...
Of couse. The phone comes with a YouTube app!
No . But there are ways to get it .Look it up on YouTube ! Hope This Helps !!
You have to have internet connection
iphone
Youtube.
The iphone 4 does have a removable battery, but it is difficult to take out and not a typical cell phone battery that you can just pop in and out. It is possible to remove the battery from an iphone 4, but not an easy process. It requires you to pretty much disassemble the whole phone.
An iPhone 4 is an iPhone.....
Videora iPhone Converter (videora.com/en-us/Converter/iPhone) is a free iPhone video converter that converts video files, YouTube videos, movies and DVD's so you can play them on your iPhone. The software, developed by the creators of Videora, can convert all types of video files (avi, divx, xvid, flv, x264, vob, mpeg, DVD's, YouTube, etc.) into the proper video formats (MPEG-4, H.264) that play on the iPhone.