This tutorial provides an introduction to Force.com Mobile application development. It shows how to deploy a Force.com application to a mobile device, and sketches the additional functionality that you get out of the box. Also check out the Salesforce Mobile Implementation Guide, with versions for iPhone, Blackberry and Windows Mobile.

This archived webinar replay provides provides an introduction to Force.com Apex Code, a strongly-typed programming language that executes on the Force.com platform. Apex is used to add business logic to applications, to write database triggers, and to program controllers in the user interface layer. The webinar covers the syntax, database and web service support, as well as testing and code coverage.

Cloudforce London was a roaring success - there was a great buzz about the place, and it was packed. All of the sessions were recorded, and you can now watch the three sessions in the developer track (Track 3), as well as the keynote. If you're new to Force.com, the session "Force.com in Action: Fast Application Development in the Cloud" is highly recommended.

Visualforce is Force.com's component-based user interface framework. This updated white paper provides a high-level overview of Visualforce, looking at its place in the Force.com platform. For an in-depth technical introduction to Visualforce, check out An Introduction to Visualforce instead.

A formula is similar to an equation that is executed at run time. Depending on the context of the formula, it can make use of various data and operations to perform the calculation. This article introduces formulas, provides an overview of the formula syntax, and together with examples illustrates where formulas can be used on the platform, ranging from default values and validation rules through to Visualforce.

This short video demonstrates just what cloud computing is, how it differs from the traditional software model, and what can be accomplished if you run your business in the clouds. Also check out An Introduction to Cloud Computing for .NET Developers, which provides a more specific use-case.

The SOQL Query tool is an open source Visualforce SOQL query engine (created by Appirio) that allows you to run SOQL queries from within your environment. It displays the results in a grid below the query field, and allows for sorting and other basic features.

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