Lack of this feature is a big pain for me - it's requested for like last 3 (or more?) years and still not much going on. Whenever I try to design a logo I'm frustrated. I understand that it may be difficult to implement and properely intergate with rest of AD, however I'd personally preffer to see this delivered rather than stuff like integration with stock photo services...
My current workaround is to make distorted shapes in Inkscape (free, open source), and then load created .svg to AD. I'm just a hobbyst so can live with that workflow because I really like "rest" of AD, but come on... commercial tool for vector graphics, that is positioned in many places as potential Adobe alternative, without basic feature like that...