There are several using the latest version of the Panasonic motor unit, the Gepida being just one of them, others including the ones from Bike-Tech.
The one most readily available here in the UK is the Gazelle Easy Glider. All of these bikes are around £1450 upwards, so at the top end of the market, and mostly give slightly lower power than the Lafree Twist series.
.
hi if you go into ebay germany you see gepida bikes for sale with front hub motors for under a £1000 these come from a big german bike dealer all you have to do is put in elektrofahrrad in the search to see the various bikes available their add is the one with sexy legs for some reason also newer one has battery in frame i think