http://mikew.github.io/ss-plex.bundle/ So far it only exists as a plugin for Plex with versions for XBMC and raspberry pi in development

"Unlike previous jailbreaks, which required users to run software on their Mac or PC and tether their iPhone to their computer, the latest hack is done entirely within the Safari browser."
I remember another jailbreak at least a coupe of years ago that also used a hole in mobile safari

"This jailbreak does not work on iPads running iOS 3.2.1."
really? it worked marvelously on mine, which came with 3.2.1

windows: miranda im. tiny footprint, native controls, and you can make it look as basic or as advanced as you want

linux: kopete. the latest version supports video (and maybe audio), global identities, and the ability to see people's status on icq who haven't authorized you (for some reason kopete and miranda are the only two clients I know of that do this)

gaim, I find, is far too basic. but some people like that in a client. and I have no idea why everyone suggests it for a windows client when miranda is there. aside from the fact that the last time I checked, miranda had bad support for the AIM protocol.

as for what makes a good IM client, well, I'm only not getting into the "merge contacts" function. having only one entry on the list that combines a friend on gtalk, msn and icq is great. and the ability to copy that contact (kopete) to another group for even more management.

group support, obviously. and sub-groups. informative/customizable tooltips. avatar support in the list itself. the ability to rename a contact.

these features and what I pointed out above are what makes an IM client good to me