hey, heres some of the things that i like on my jailbroken ipad, i believe almost all of my tweaks work for an iphone because almost everything is made for iphones,

-activator (should be made by"bigboss" thats how i know its the real one)

-cylinder (also made by "bigboss", this tweak allows you to make cool animations for your page slides, you can enable several at once and create cool combonations)

-Flat circle 7 (also made by "bigboss"

-LocaliAPstore (this allows you to buy in app purchases for FREE, WARNING, using this will suspend your apple buying privelages, meaning that if u use itunes money to buy things you will spend the money for what you bought but you will not recieve wjat you paid for, this is what ive heard, google it to find out more.)

-PandoraSkips (made by bigboss, unlimited skips on pandora)

-Tinybar (also made by bigboss, this allows you to customize the width of the notifications at the top of the screen so it doesnt cover so much of the screen.)

-MiniPlayer (this is made by BiteYourApple so you will have to google how to add the source but it basically adds a small window to your homepage that allows you to change your music and play music without having to open up your music app.)

-BiteSMS (made by bigboss, this allow you to send quick messages to friends without having to leave your current app, turning the volume key and tapping on the screen where the volume comes up will allow you to compose a message)

-FlipControlCenter (made by bigboss, this allows you to change the actions in your control center so you can chose what to all have on it.)


These are just some of the ones i have that i use most often, hope some of these you find interesting. Hope i helped
-Ditton