it could be great, BUT... IF it is gonna flood my phone with chats from my computer or tablet, forget about it
just do it already, that would be an excellent solution for that constant white background on the skype app
I think Skype should mimic what Hangouts does on Android. You should have the option to replace the stock messaging app with Skype and the Skype app should be able to send messages via your phone's SMS/MMS, Skype SMS and Skype IM/Video/Voice Message. Skype should also be able to replace the stock dialer, allowing you to call from the phone's number or your Skype number and integrate with your contacts for both.
I prefer the UI for both the stock messaging and dialer apps in WP8 over Skype, but Skype's UI can be Metroified. There might be a case to make Skype IM integrated into the messaging hub as well so people have choice, but it seems like MS is moving away from the hub concept.
As an aside, I see no reason why Skype doesn't do EXACTLY what Hangouts does on Android in their own Android app. Plenty of Andoid + Skype users would probably love to replace their stock messaging app with Skype if it were an option.
The Skype Integrated apps that are part of Windows 10 Mobile now surface Skype contacts and offer Skype messaging right from the people list. You can learn more about Windows 10 here: www.microsoft.com/en-us/windows
We should be able to send a Skype message directly from the Windows 10 People app and it than it automatically opens the Messaging Hub.