Undoubtedly the most complete online course for learning Malay - and it's completely free! This is the smartphone version. The full version, which discusses the Indonesian language as well, can be found here.
You can now learn Malay wherever you are (at the bus-stop, in the subway or even while waiting in a queue) with just your 3" smartphone or 7" tablet.
In fact the above course of 64 lessons has been redesigned so that whether you are using a smartphone, tablet, netbook, laptop or desktop the pages will adapt themselves to the width of your device. Hope this will make your learning of the Malay language more comfortable and convenient.
I wish to emphasize that this is just a basic course and is meant for beginners only. Advanced students of Malay are kindly requested to look elsewhere.