The E66 takes a different approach to the business mobile, using the slider design common in Nokia’s N and consumer series of mobiles. Nevertheless, the device’s hardware and software features are oriented towards serious business use, with a Symbian S60 software base and support for Microsoft Office and PDF documents. Microsoft Exchange support is complemented by support for a number of ISP and Internet-based e-mail accounts, which can be used with the device’s HSDPA or Wi-Fi connection. A built-in accelerometer allows the E66 to automatically determine its orientation and rotate its display if required, or silence the ring tone if the phone is turned over. Integrated A-GPS and a microSD card slot are also present. Both the E66 and E71 are slated for a July release.