leOS - a simple taskmanager/scheduler

LuisSoares:
Is LeOS able to keep up with realtime, does it have any kind of RTC feature?[/li][/list]

At the momento, it doesn't. To make a very good real-time software we have to use the built-in RTC (Real-TimeCounter) module with an external crystal, so that we can set the timer 2 to work in asynchronous mode.
(i.e. in my "Micrologio" project, that is available on my website)

Does LeOS have limitations in terms of number of tasks it can manage?[/li][/list]

The limitations are set by SRAM memory. By default leOS can manage up to 10 tasks: you can change this value in the source of the library.