Already talked with you about Reeder for iPad but didn't mention that app for iPhone as it wasn't interesting, But now I can say it's awesome after trying it on iPhone 4 with Retine Display, You have to see the new Reed V2.1 that got Retine Display support and some bug fixes. Check the changelog below..
Changelog:

New:
- Retina display support

Fixes:
- Black screen when switching to/from Reeder (iOS4)
- Possible crash on start
- Sync on “start”

It makes reading your feeds wonderful, amazing, and easy, This App is wonderful witah feeds, it presented to you as stacks of news in which you can open just like you do in the Photos app

Reeder for iPhone can be purchased from the iTunes App Store only for only $2.99 from the Link below,

Download Reeder for iPhone [iTunes Link]
Download Reeder for iPad 

Reeder, the best RSS App for iPad has finally approved by Apple, this is the much waited App as it makes reading your feeds wonderful, amazing, and easy. The App is avaliable only for 4.99$ in the App Store, Just head over and buy it!

This App is wonderful with feeds, it presented to you as stacks of news in which you can open just like you do in the Photos app. Sure, a lot of people expected not to pass from approval because of this implementation but it passed! and that's great! [via Macstories]

You can buy Reeder for iPad from Here. [iTunes Link]