From Forum Nokia Wiki

The Nokia Mobile Web Templates are a series of custom, tested mobile web styles and components. Creative developers can mix and match components as needed or use the full series to completely customize their Web site or application. There are three sets of templates available:

• for high-end devices, such as Nokia N97 and Nokia N900
• for mid-range devices, such as Nokia 5310 XpressMusic
• for low-end devices, such as Nokia 6111

In addition to the templates, there are Layout Samples available, created using components from the Nokia Mobile Web Templates. The layouts illustrate common ways to combine components within the context of a corporate website, a news website, and an on-line store. Layout samples are available for same device categories as Mobile Web Templates: fir high-end devices, mid-range devices and low-end devices.