I think the 60GB cap for 5 Mbps is sufficient for 1 person. Using normal web surfer / normal downloading / YouTube streaming. I'm in Singapore and I have a 7.2 Mbps HSDPA plan and it's capped at 50 GB, and I myself typically use about ~35 GB a month. However, for family/household purposes, 60 GB is clearly insufficient... My Streamyx bill already indicates roughly ~135 GB a month. So I think the cap should be placed at roughly 150 GB or so.

I hope the cap only applies to international bandwidth, if it's implemented. To save on international bandwidth, we should be getting content providers and CDNs to bring their infrastructure into Malaysia. For example, YouTube can bring their Content Delivery Network servers into Malaysia's internal network such that content can be served with much less cost. So does other common CDNs such as Akamai or Amazon CloudFront. This means less usage of expensive international bandwidth -> lower cost for TM -> lower cost for subscribers. To my knowledge, they do have CDNs in Singapore, as I'm getting pings of roughly 20 ms to the YouTube content servers (*.c.youtube.com).