Be our designer: Business logo needed for panorama software

present4D

We are a company who offers 360° Panorama services in very high quality. Furthermore we have developed a software to build 360° Panorama Tours, its a rich multimedia application. By selling the software we also sell our service in creating the multimedia content.
Currently we work under the name "virtur" http://www.virtur.info but we have to change that name because one of the three founders will do his own thing.

We have the two brand names "virtur" and "present3D" you find two brochures attached to see the content of our business.

present4D is a cooperation of two companies: http://www.pixelkontor.de and http://www.teamxmedia.de the design of the new logo must not be similar. It's just to give you a feeling of our "world";)

Target audience are:
- producing industrie over 500 employees
- museums
- schools
- gouvnerment
- virtual plant tours
- eLearning
- construction site documentation

We need a very innovative and modern style but very reliable and serious. The decision makers are between 40 and 55 more of them are conservative.
The Logo should work with and without sub-claim "Change your Point of View".
We don't mind if the letters are upper case or lower or a mixture.

we like very much the following design for example:
http://99designs.com/logo-design/co…1#entry-73
No. 73 and 84

We also like our actual logo: http://www.virtur.info but it should not be a copy of it.

We'd like to have a word mark and a picture mark. The picture mark should give an abstract overview of our core business: Conecting worlds (Panoramas or realtime 3D) together and link multimedia content for different target groups to it. This means we have one panorama tour, but different content versions for different target group (ceo's and housewifes, technical orientated people and technical experts for example). Additionally we have the claim "Change your Point of View(!)" which could also be used for design ideas for the picture mark.

Please feel free to experiment with colors! We like the darkblue and silver things but as well turquoise...

The files we will require are:
Print file format - .ai (CMYK)
Web file format - .jpg and layered .psd (RGB)
Please do not use any stock images or clip art in the logo