The later versions (the 2x0 range) have a better design. These come in a box that looks
different, so can be easily told apart. However I've not seen one so I cannot comment.
The main difference in the 2xx range is the 200 is a 'cost reduced' board, where the 250 has the same motherboard as used in the IBX-100 ... albeit in a bigger casing.
There is an IBX-101 which is basically the same as the IBX-100, but it has been preprogrammed to connect to FreeServe instead of Bush Internet.
And, finally, let us not forget the television. You have the standard 14" telly with built-in Internet, and more recently a rather nice looking widescreen telly with built-in Internet. I'm not sure what the hardware in these is, but since most of the IBX models use the same motherboard, I'd go out on a limb and suggest maybe.....
There are apparently two ROM versions: the original (I guess, 1.0) which offers the browser and
40 bit SSL; and the later (1.1?) which offers 128 bit SSL. There are other differences, but more
Rumour has it that a national building society (Nationwide?) is offering 128 bit SSL ROMs to their customers using the Bush box (for £30ish) so that they may access the on-line stuff using their Bush box.
I'm not aware of this upgrade available for general sale. Maybe the building society is subsidising the cost? If anybody knows different, please contact me!
Likewise, if you have any more details, please contact me!