Apple iPhone is a hugely popular gadget but still lacks basic functionality for copy-pasting text, there had been quite a few software upgrades for iPhone but none addressed lack of this basic functionality, However, smart developers at PasteBud have found a nifty trick to use Javascript for adding this must-have functionality on the device, to make it work you need to bookmark two javscripts on your web-browser capable of syncing with iTunes (Safari or Internet Explorer) and then sync your iPhone.
Once these bookmarks get synced on your iPhone you can use them to copy and paste text from emails and webpages on the device.