If you have multiple boot profiles or you just want a simple Boot Manager for your Windows Phone, then you can try out the SmartBoot Boot Manager for Windows Mobile. This Boot manager has a quite intuitive UI. You get an quick overview of the phone status and can select your boot profiles which you can manage inside the UI as you like.

Additionally you can have voice announcements and an extended information screen. On this info panel you can find all important information about your phone.

More details and download available here.