Are there any benefits of helloox other than the convenience of being able to install things you'd otherwise need to sign with the SAME certificate you've already signed hellox with? I mean does it give you any extra capabilities besides this convenience?
I suppose it is possible it could totally disable program installation / usage security such that you could 'root' the phone and have installed programs run with even higher security access than the certificate you used to sign hellox with could itself grant by signing other apps, but I'm unclear as to whether this is so.
If it is just for the convenience only for not having to sign the stuff you want to install, I could do without it. If however it gives you truly full access to the phone, that could be handy for some purpose, and is a consideration if it may not ever(?) be compatible with a given firmware.