Application UI Design Recommendations

Mohammed Musallam musallam001 at
Thu Jul 19 15:46:11 CEST 2007

I agree. A distinction should be made between apps on the phone that are finger apps and intended for day2day _phone_ operation and other apps that adds or mimics a software available for the PC, e.g. a TextEditor (mobile openoffice maybe?). 

btw, i just noticed... the iphone does implement a double tap. in safari and google maps, double tap is used to zoom in.

i know this defeats almost this whole discussion, but its something to ponder... to Apple, a double tap is not something difficult for their end users...

----- Original Message ----
From: pauric <pauric at>
To: ramsesoriginal <ramsesoriginal at>
Cc: flerchjj at; Mohammed Musallam <musallam001 at>; openmoko-apps at
Sent: Thursday, July 19, 2007 9:24:37 AM
Subject: Re: Application UI Design Recommendations

I had a think about this last night.  There is a use case for double tapping: to select a word in a text editor.

So, some time in the next few days I'll edit the wiki with a line that advises against the common implementation of a double tap gesture, but in circumstances where there is a clear parallel with a desktop app (
e.g. text editing, url entry, copy/paste selection etc) that the designer should carefully consider implementing that gesture.

Excellent discussion - thanks all.

On 7/19/07, 
ramsesoriginal <ramsesoriginal at> wrote:
We must not forget that this actually IS a phone, and on a phone "normal" users don't double-click since there's no mouse. As far as I have seen, end-users don't even think of double-clickning on phones (except some of the techie ones, wich have the skill to understand when to double-click and when not).

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