tried and it work perfectly... here some guide for those who wanna get it to work:

1. uninstall the old version
2. root access to delete ALL wazapp/whatsapp related folder
3. reboot
4. install cepi latest .deb build
5. launch app, it will sync those group message where you've joined
6. WAIT...... till it's done
7. sync the contacts
8. done

Improvement seen from cepi ver vs the 0.26

1. Group chat with all features (photo/title change)
2. Contacts name displayed in Group Chat
3. Very nice UI
4. Very nice incoming alert vibration/sound
5. Full emo icons
6. Media sharing download ok, upload still buggy
7. No camera direct intergration (yet?)

Very well done porting from Cepi...

uninstall the old version mean the whole wazapp>?
install the cepi new .deb need install original 2.6.0 first or not/
?

i didn't need to uninstall the old one first, just ionstalled the new .deb, rerstartet whatsapp , and i'm good to go, don't use groups anyways.

but i encountered an error oO when trying to send an image to a galaxy S3 both tests came out with "not enough memory" on the s3 devices , is that a problem with me or with the galaxy? images form other senders worked fine on the S3.Galaxy S2 works fine as a receiver Lumia 710 too.

it's the wazapp error, if you're using others platform Whatsapp it's supported by the official team, too bad our N9/Meego don't get the official support...

Yes, the whole app (btw it's only 1)

when you install cepi latest .deb it will auto asking to download the core apps

well but i don't get why i can send stuff to a S2 and a Lumia but the s3 tells me "not enough memory" oO (it's different numbers and all that)

I get "permission denied" when trying to remove the hidden .wazapp in /home/user/.

I tried /home/user/ # rm -r .wazapp but did'nt work. Can some1 help me?

then it would related to the s3 whatsapp (which u can feedback through official channel) as if the s2 and Lumia can get it mean the media been properly shared out, it's the receiver end client causing the error...