It may play significantly more complex documents. In particular, the full blown SMIL players will be automatically SMIL Basic compliant. Thus SMIL authoring for low power devices is easier since general tools can be used. This section is informative. SMIL Basic profile is a client profile which conforms to SMIL Boston and may be supported by wide variety of SMIL players, even those running on small mobile phones.
Display can render texts, images, audio and stream data in a small area.
Some may have a pointing cursor. Another may have a voice interpreter. So, in a SMIL player, the use of timers should be restricted in number and frequency, and memory should be used sparingly. The SMIL Basic Profile meets these requirements. Layout Layout Module coordinates presentation of objects on the display device.