In a previous life I was a Lotus Notes developer. I loved to develop solutions with it (especially once they released Domino - I was a dab hand at creating web based issue trackers & forums!
) - however, I have to admit it wasn't set up to encourage the design of particularly easy user interfaces (sorry to drop into Geek Speak). But, actually, I now miss it! But I wouldn't have it as my e-mail client. Sorry!