I have just discovered, purely by accident, that you can only install 180 applications on your iPhone. Why, there is a maximum of 11 pages of applications plus the 4 spots on every page.
And how did I find this? Reading an iPhone tips page told me that I could put a Web Clip shortcut on my home page for any website. Just select “+” in Safari and tap “Add to Home Page”. Sounds simple enough, right. No, when I pressed “+” there is no add to home page option.
Much research later, with nothing helping I wondered if a limit on installed apps could be causing the problem. Deleting an unused app brought the menu option back!
So, if you’re getting up there with your installed apps it might be time to do a bit of housekeeping.
And here’s a bonus tip… Got something on your iPhone screen that you’d like to share, or just remember? press the Menu button and then, while holding it down, press the On/Off button. Your iPhone will make an impressive camera type noise, flash the screen white and store a “photo” of the screen in your photos. Thai’s how I collected the proof of the limit.

February 1st, 2010 at 20:10
[...] This post was mentioned on Twitter by Nigel Ball who said: Question: How many iPhone applications can be installed? Find the answer (there is a limit) here… http://j.mp/cn8tx9 [...]
April 24th, 2010 at 12:28
An update in the interests of being totally correct. It is possible to add more applications from the appstore. However, they will not show on a home page and can be accessed only via the Search option.