Adobe has announced the release of updates to Adobe Flash Builder 4.5 and Flex 4.5.

The updated versions of the tools will enable developers to build cross-platform apps for the iPhone, iPad and BlackBerry PlayBook, adding to the ability to build Android apps that was announced in April.

Flash Builder 4.5 is offered standalone or as part of Creative Suite 5.5 Web Premium and Master Collection. It costs £181.20 Flash (ex VAT) for Adobe Builder 4.5 Standard or £413.00 (ex VAT) for Flash Builder 4.5 Premium.

Upgrade pricing for Flash Builder 4.5 is £37.16 (ex VAT) and volume licensing is available and you can download it or get a trial version from the Adobe website. Flex 4.5 is available as a free open source framework.

Flex 4.5 includes significant productivity enhancements that allow developers to rapidly build applications for the desktop, web and top mobile platforms, according to Adobe.

Using best practice code templates, code completion and code generation features in Flash Builder 4.5, developers can accelerate the creation of Flex and ActionScript® applications and deploy them using Adobe AIR.

“The reaction from developers to the new mobile capabilities in Flash Builder 4.5 and the Flex 4.5 framework has been absolutely fantastic,” said Ed Rowe, vice president of developer tooling, Adobe.

“They are amazed by how easy it is to create great mobile apps for Android devices, BlackBerry PlayBook, iPhone and iPad. Companies can now effectively reach their customers no matter what type of device they have,” Rowe continued.

According to Adobe, 80 million mobile devices support support the Adobe AIR runtime, with this figure set to rise to 200 million by the end of the year.