With the fibre cables running on the both sides of Africa, internet speeds have improved drastically to the extent hosting in Zim is now just a personal choice that has very little to do with access speeds. I once had the privilege to connect to the SEACOM fibre and the speeds I got simply mesmerised me - I managed 80 Mbps! And I am told the cable is currently operating at 100Gbps... with a design capacity of 4 000 Gbps. (4 Tbps)
4 years ago I used to struggle to access my (cnr 4th/Jason Moyo hosted) internet banking account from SA, but now its opening in mili-seconds....Zim speeds are now comparable to the rest of Africa and parts of the world. And you might not believe this, my Econet 3G (on HTC Desire HD) is faster in Harare, than on MTN SA in Sandton!!! Zim isnt that bad after all.
On another related note, I offer heavily discounted hosting rates for Zimbabwean start-ups (most host for free). Its the little I can do to see my country of birth taking baby steps towards the new world. So if u feel ur start-up is being milked dry by we-know-who, contact me...I can try to help.