Maybe not exactly right now, but in the future we will need it. So ask yourself, what's better, to fork now while Bitcoin is still somewhat underground, or to fork when BTC is huge and all over the mainstream media on a daily basis? exactly.
rather not rush and jump into something without seeing if it causes bugs. i would rather they testnet a version for a few months and work out all the kinks and then release it as part of a full release version 1.0
at the moment most blocks are under half a meg, so its not like its goiing to bloat peoples hard drives any time soon anyways. and the only bottlenecking is down to pool greediness rather than block data limits. so again no need to rush or worry. i think the developers will update it as and when needed/appropriate