How to add more than 11 pages on Springboard without jailbreaking it (iPhone/iTouch)

1. Make the first page & last page full of applications/games
2. Put Voice Memo application on last page at the bottom right corner
3. Open page 10 ( page before the last page ) and move one of applications to the last page ( page 11)
4. Your Voice Memo application will dissappear, don't worry..
5. Just restart your iPhone / iTouch
6. Done! You have 12 pages on your iPhone / iTouch
7. Just follow my instruction above to add more pages ( 13 pages, 14 pages, 15 pages, 16 pages, 17 pages .... )