Opera has inked another deal with Microsoft – after Opera’s full-fat mobile product became the default browser on the Nokia X2 Android handset, Opera Mini will now be the default on Microsoft’s feature phones on the Asha, Series 30+ and Series 40 platforms.

The eagle-eyed among you will have spotted a slightly limiting factor in all this: [company]Microsoft[/company] is killing off almost all of these devices — extremely low-end Series 30+ devices like the newly-launched Nokia 130 may survive a while longer — in a push to take Windows Phone towards the bottom of the market.

But it will be a slow death, over the next year and a half or so, and Opera will be there for their twilight, gently shoving the currently-default Xpress Browser to the side.

“Users will begin to receive notifications on their phone starting October 2014, providing them with information on how to upgrade from…