As per http://html5test.com/ Intel AppUp™ encapsulator beta gets a score of 236 out of 450 points
Here are the supported features by functional areas:
Intel AppUp™ encapsulator beta essentially uses QtWebKit
[QtWebkit 2.0 with Qt 4.7.3]
as its underlying browser engine
The newly added HTML5 Elements like
Many of the latest HTML5 form elements are supported by Intel AppUp™ encapsulator beta, of these
are some of the supported ones. Form field level validation allows both pattern attribute and required attribute checking. Most of the User interaction elements like
Online Web applications or URL based applications that run inside the iframe of Intel AppUp™ encapsulator can utilize
Sandboxed iframe works fine with Intel AppUp™ encapsulator where as seamless iframes are not yet supported here.
Most of the storage API is supported. Session storage, Local storage(key:value as well as Full DB) are supported. IndexedDB is not supported. File API is not yet supported, but flash based, form based file uploaders are supported
Both of these are very well supported by Intel AppUp™ encapsulator. Cross-document messaging, Server-sent events, WebSockets, Web Workers, Shared Workers are well supported.
Not supported yet. But as Intel AppUp™ encapsulator allows plugins like flash, silver light. Applications using these technologies can take advantage of this platform.
Canvas element is fully supported by Intel AppUp™ encapsulator. 2D contest, text have good support. WebGL is not yet supported.
Here are some of the HTML5 features that are not yet supported by Intel AppUp™ encapsulator
To sum up, many of the important HTML5 features are supported by Intel AppUp™ encapsulator. In the coming releases many of these unsupported items will be addressed.
If you find inconsistencies, or need support & assistance on finding workarounds, please logon and add your question or comments to the AppUp encapsulator-beta forum
Source Intel AppUp developer program