YES, this awesome feature is now available!
If you are an MBA customer, from your computer you need to click on the activation link received by email. It will automatically open a web page in which you can create an offer the same way you do it on your smartphone.
Watch the following video for more details: http://www.youtube.com/watch?v=MYdUrz997Us&feature=youtube_gdata
or go to: http://mba.local.ch/en/2013/02/05/generate-offers-on-your-computer/
Important: MBA web creation is unfortunately not available on Internet Explorer at the moment. It works however on Google Chrome and Firefox.