We are in the process of re-designing our plans to be even more competitive and an idea that has been thrown around has been to offer unmetered bandwidth so users never need to experience overage charges. Virtuozzo has built in support for this, so it is trivial to implement.
So to the people out there who buy VPS accounts, would something with 1.5-3Mbit/s which can transfer 350-700GB/mo outgoing and unmetered incoming up to 100mbit/s sound attractive versus something like 150-300GB/mo? You can pay to upgrade your cap at any time at competitive Mbit/s increments. Note, the Mbit/s is capped which is just fine for most applications, but not too good for sites that with lot of burstable traffic.