Taiwanese electronics maker Asustek plans to release two smartphones based on Microsoft's upcoming Windows Mobile 6.0 software.

The M530w, which offers a full QWERTY keyboard, and P526, with its built-in GPS (global positioning system), are on at the Cebit, which runs until Wednesday. Both handsets are to be released in June, said an Asustek executive manning the company's booth.

Unveiled in February, Windows Mobile 6.0 is the next release of Microsoft's software for mobile phones. The software includes several improvements, including a revamped interface meant to more closely resemble Windows Vista, and tighter integration with Microsoft's corporate software products, such as Exchange Server 2007.

In addition to having the improved mobile OS, the M530w has a 2.4in screen above a Qwerty keypad, and is clearly meant for business users. The handset's 2Mp camera performs double-duty as a business card reader. The handset can recognise words on the card and import new contacts into the phone.

The P526 has a touchscreen LCD (liquid crystal display) instead of a keyboard, and packs a 2Mp camera. But the main feature is its SiRF Technology's GPS chip, which works with the handset's navigation pack.

Pricing for the two handsets has not yet been decided.