I definitely understand the limitations of those web based aggregators. That's why I'm using Awasu.
I guess if I had my choice in this the web interface into Awasu's power would be the best option if it weren't too difficult. That way I could maintain everything in one place and just go to a website from my mobile (or any other browser for that matter). I'm not sure it would be necessary to have the ability to add channels to it from the interface (although that would be handy) but if there were at least way to read your new items (marking as read of course) that would be enough for me.
If I'm not mistaken there is a way to publish new items in Awasu into an email, right? I get my email on my mobile and I've been thinking about getting that going but I'm assuming they won't be marked as read either when you do that.
I guess my main complaint at this time about Awasu isn't anything with the program itself, just the ability to get to the information in it from where ever I am. Of all the aggregators I've used, Awasu is by far the best but I'm still struggling with my need for information while not at my main PC. Maybe I should just learn to detach from being up to date!!! I wonder if there is an 'RSS Anonymous'.