On 3/1/12 12:37 PM, "Om" <bigosmallm@gmail.com> wrote:

> It might not be a very common use case, but it is a valid use case
> nevertheless.  
I would prefer that we don't try to serve the uncommon use case.  Why make
everyone pay for a full UIComponent just for space?  You are welcome to
create a sample "SpacerWithToolTip" component.

> mx:Spacer supports everything that UIComponent supports.
Shooting for 100% parity with MX is not a good idea, IMHO.

-- 
Alex Harui
Flex SDK Team
Adobe Systems, Inc.
http://blogs.adobe.com/aharui