It has been mentioned that the search function in wp8.1 will be similar to Bing smart search in Windows 8.1, which I find really useful and cool, but I was just wondering, will it be able to, for example, search through our text message history if we want to find a text we sent a while back? Or something similar on Whatsapp, or other messaging apps. I think that this is an important feature that's missing from wp8. I never had wp7 phone, only 7.5, so I never got to use the contextual search, but it seems like it was very useful.