<p>The heart of any good web app is it's offline capability and JavaScript functionality. Currently what tools and wrappers are availability for the desktop web app maker to cross over to the mobile market? What would be the necessary read ups for such a team?</p>

<p>Clarifications:
I am searching for information on how much offline capabilities and JavaScript functionality has improved on the Mobile phones. I know that the term 'mobile phones' are too broad. I am aware of offline solutions like Gears, Adobe AIR, Silverlight etc. But are these really for mobile phones? </p>

<p>How much has JavaScript improved on Mobile Webkit Browsers such as iPhone and Symbians? OperaMini also claims some JavaScript functionality.</p>

I'm not totally sure I understand your question, but you'll probably want to take a look at the
iPhone Dev Center
and the
Google Android SDK
to start.
Blackberry
also has a Development Program. Beyond that, you may want to look into
WAP and WML
.
Google Gears
,
Adobe Air
, and
Mozilla's XUL
will give you some offline capability, but to my knowledge they won't wrap an existing desktop app and make it available for the web.