How To Make Your iPhone App Launch Faster (by faking it)
dragthing.com
dragthing.com
That should be instant, no delay at all.
A calculator application with such limited functionality should be well under 100 K and load in a split second.
A casio fx something or other clone.
The binary was 61107 bytes long (statically linked).
Took about a week. I don't recall claiming it only took a weekend.
Apologies for the 'classic' style coding, it's pretty old code. The window manager this talks to was for the Qnx operating system.