Little Purple Trumpet Flowers

(click for larger image)

These flowers are from seeds I saved last year.
I don't know what it is so I call it the Little Purple Trumpet Flower plant.
The flowers are small, shades of fuschia, purple, and pink, with yellow centres (sometimes faint and sometimes strong). You can also see veins in the petals.
It grows seeds in long pods, like beans and peas, with two compartments in the pod. The seeds are ready for harvesting when they look like dark spots in the pod, and when you've opened the pod the seeds are browinish red (they are green if you pick the pod too soon).

It seems to grow better in the ground or large pots. In a larger pot it gets long and has a fair ammount of flowers. In a small pots (3in) it grows, but has a thin stem, stays pretty short, and gets (so far) just a few flowers.