New to NGUI, using 2.3.6. I've been using the UIEventListener to centralize my input processing into one parent script and began looking into how to implement a Tooltip, when I realized that the listener is missing an OnTooltip method and delegate. I'm just wondering if there's a really good reason for it not being there. It was a a trivial 2 lines of code to add it and it's working fine, but it made me feel like a dirty monkey to be modifying NGUI code.
If this was a simple oversight then I request it be added to the next release. Apologies if this has already been dealt with (I looked but found nothing online).
Also, please note that your code: oh it's so fine, it's so fine it blows my mind (huff huff).