I'm currently in the middle of my campaign (14 days to go, 80% funded) and I like the IDEA of cross promoting; the idea that people who are my type of customers might also like a certain other sort of product, and vise versa.  
But the ones I've been approached by just didn't feel right - like they weren't really authentic creators, but marketers playing the KS game... and when I've approached other campaigns, I don't hear anything back from them, like they figure *I'm* the sketchy one.  
If you're a backer, is it annoying to get other stuff in updates?  is it cool?  If you're a creator, have you done it? has it worked? 
of course, I'd love everyone to go check out my campaign:
https://www.kickstarter.com/projects/id ... l-the-time 
thanks,
Tys
            
			
									
									
						