I was given this as an unrooted cutting last fall. I was told just stick in in compost and it will grow. well in the last few months in ahs grown large and now has flowers held at the end of 4inch/10cm flowering stems.
have you posted a picture of the leaves yet?
I'd also say your plant is a Streptocarpella - the flower is almost identical to mine, including the 90* angle between the petiole and the flower.
Do you need a picture?
I couldn't find any Streptocarpella on that site. Don't mix up Streptocarpus and Streptocarpella, they are different genera and have quite a different growth habit, too.
Mark, I will go and take a picture of mine now. I'll mail you shortly.