First have announced some changes to their Fareham and Gosport services from Sunday 27th July. Further details of all the changes can be found 
here.
Here in Southampton, this means that the 
4 and 
4A will disappear and be replaced with a half-hourly new route, the 
X5. This will run to Fareham via Warsash and then on to Gosport. The 
X4 is rerouted slightly, to now serve Titchfield village, giving them double the number of buses as they currently have.
Southampton Hill in Titchfield and the southern half of Hunts Pond Road in Locks Heath will lose their bus services.
Overall there will be more buses to Fareham, 4 per hour. There will also be more to Gosport, 2 per hour, but they will run via Fareham, so will take longer than the current route 
4.
The new timetables for the 
X4 and 
X5 starting 27th July can be found 
here.
In other news, 
First tickets can now be purchased on some mobile phones, via the new 
First mTicket app. It only works on Apple and Android phones however and it isn't clear whether Windows phones will be included in the future.