I was in Germany a while back and while the connection where I stayed wasn't strictly uncapped, but the cap was huge, something like 60GB, quite reasonable in my view (and I don't think it was a hard cap, just an advertised limit). Likewise in Belgium it was about 30GB (IIRC) and purchasing additional 30GB's was very cheap. Speeds were around 8Mbit --- and you actually got that most the time. Pricing in the range of roughly R200 - R300/month IIRC (total, no 'extras' like forced voice line rental). So ja, 8Mbit,60GB 'soft cap',R300 vs 384Kbit,+/-R500, we have a loooong way to go. And those European connections are considered slow these days ... Japan, South Korea etc., that's what we should be benchmarking ourselves against.
Note also that our silly 384Kbit speed creates an 'effective cap' of around 100GB/month, which in our context would somewhat mitigate the type of problem Rupert Bryant refers to with overseas companies advertising 'unlimited', since that's in the context of multi-Mbit connections where a heavy downloader could potentially use Tbytes/month. With these new SAn 'unlimited' offerings, I especially doubt we're about to see the 384 joke get increased. A 384kbit "unlimited" SAn plan is in fact a 100GB cap, basically --- so they can do the math on the worst case scenarios there. If 384's are bumped up to e.g. 512 or 1Mbit a lot of that math gets thrown into turmoil.
What may happen is that after a while, if it becomes a problem, instead of 'unlimited' the SAn companies adapt the offerings to e.g. have 30GB or 60GB caps instead (quite reasonable for most users still in today's environment, though applications for the future will need a lot more) -- and possibly will be soft-caps only, since you have a trade-off between the cost of policing infrastructure and the cost of the extra bandwidth. I do think our ISPs are going to start feeling more pressure, and finding it harder to make more money, some may go under while the others learn to be very efficient, but that is precisely the magic of competition