Can you elaborate a little more on the Reminder/Calendar issues? Also the Popup Blocker?
I bought and use ISX currently, but not for what most people probably bought it for. I actually disabled all the extra panels (FB, Twitter, Mail, RSS) and only use it for access to the NC in lock mode, Messages+ integration, and the toggles it has in the Top Shelf (I think they are integrated better than SBSettings). I felt for those features alone, bundled into one app, was worth the cost instead of buying multiple other apps/tweaks and trying to make them work in harmony.
So far, I haven't come across the issues you mentioned but am curious about them incase I am missing something. Again, I really only use ISX for minimal features so that could be why.
regarding the way ISX handles Calendar/Reminder alerts; i'm not so sure it is completely on ISX's end. here's my dilemma; typically i collapse my Calendar and Reminder sections. once this is done you obviously do not see the bell to the left of the event when there is a alert. also, unfortunately since Apple decided we do not need repeat alerts if you happen to miss the audible alert you'd never know unless you constantly check your Reminder and Calendar sections within ISX
Popup blocker will allow me, and others, to use ISX as an Infoshade (like LockInfo) since it will obviously block anything you desire. the other downfall is the fact that pseudo-badges for OpenNotifier are not working. so with the combination of Popup Blocker and OpenNotifier this will allow me to put any type of statusbar icon(s) in my statusbar with no other alerts on the LockScreen. then i can swipe the NC down to check at my convenience
coming from a pre where most of the tweaks and stuff in preware were free it's a surprise that there is so much stuff that is charge for when you jailbreak. I finally did it the other day after stupid itunes deleted 40 gb of my music for the second time without warning me. Itunes is utterly illogical. i'd never delete all my music. even if i just hit sync it's the same files in both places. if i'm syncing with the computer it's there. At most it should ad files but i digress. rant over. regardless i figured screw it it's empty now i might as well try and jailbreak. Interestingly i've concluded that i totally don't really need to jailbreak. The OS does a tone of good stuff. but i'm looking through this thread for ideas of good stuff so thanks to all the comments that came before.