Check if you have not got a NOKIA roadshow near your office ;-)

You can use WP7 xap on WP8.
But if you re-compile your WP7 application on WP8, you can have compatibility errors because some APIs changed!

For information, if you are using Virtual Box on MAC to use Windows 8 VM for WP8 development purpose, the basic Virtual Box install does not work :-(
You must install Virtual Box update/plugins to...

Do you want to have information about Windows 8 development or WinRT API for Windows Phone 8?

For the moment I never find the way to have SDcard "emulation" on the emulator. I am not sure that it supported by the emulator.
For new features of WP8 see:...

If I understand, now Pivot and Panorama are natively implemented. So.... more optimized.

Hi guys,
I have a LUMIA 800 and a 820 (not for long time, just for demo). I use the LUMIA 800 for 6 month and I never have big lag.
I have seen difference between WP7 and WP7 for internet purpose....

It seems that your phone is unlock, so the problem does not come from here.
To deploy an application the lock screen of the device must be unlocked.
Are you using a virtual machine?
Do you see WP8...

Hi,
You can try to use behaviours for the page navigation. Have you try to simplify your XAML pages for test? Keep just "LayoutRoot" and try to navigate.
Run the performance analyser, if you have...

Go to : http://create.msdn.com/ , you will find many information

I just added MVVM Light and a Tile creator framework

Have you check if mp3 duration is included on TAG information?

You can use the following toolkit for tiles creation:
http://ree7.fr/blog/2011/12/tile-toolkit-for-windows-phone-7/

You can create all your views on the same layoutroot and add transparency between them. The problem is that with solution, you can not use the default navigation system between pages. You must create...

No way to do that for the moment on WP7. You can only detect is you are on battery or on power supply I think.

First, create your message box with blend.
Second, create a storyboard on blend to change the opacity of the message box.
Third, attach ControlStoryboardAction to your button to play the storyboard.

Maybe it is possible to use converter to do that. I never try but you can check

Your link is dead I think.
In which precise point you want help?
Silverlight? Code behind? C#...

For the silverlight part, don't hesitate to use Blend instead Visual Studio. Many people are...

You can found sample here:
http://jacob4u2.blogspot.fr/2010/07/clearable-textbox-for-win-phone-7.html

Have you got the same ID every time?
Have you check all informations on the phone parameter view?

Hi,
You can try PhoneGap. It supports Windows Phone now.
If your application works fine on web browser, you can publish it on the web and use it on the Windows Phone 7 web browser. It is another...

It was possible to change the APN with the NOKIA "diagnostics" tool. I do not know if it is still available!