Scripting
We have a new Linden Scripting Language (LSL) function coming: llScaleByFactor(). It allows for uniform scaling of an entire linked set with one LSL call. If you size hair or shoes, you may notice the ripple of size changes as the item is scaled prim by prim. This function will provide a faster and more efficient way to accomplish the same thing.
This change will go into an RC release that is planned for January.

Andrew says this feature is already running in ADITI on there regions: Boardman, Borrowdale, Balance, Mayfair and Hawkshead. So, you should be able to test the function there, now.