It is said that localstorage only supported by browsers newer than this:

* IE 8
* Firefox 3.5
* Safari 4
* Chrome 4
* Opera 10.5
* iOS 2.0
* Android 2.0

So, if I my clients will use older browser - is it OK for me to store some information (less than 4kb) still in localstorage via jquery? 

Also, which mobile browsers support localstorage?