I just kept having some performance issues. Mainly lag spurts where the phone seemed unresponsive for a long period making me have to remove the battery. And also, intermittent reboots, everything else about the phone was something I had been looking for. I did take a look at the phone mentioned above and it may not be a slider, at least from what I can see zoomed in.
I will just wait it out and see, maybe in a year or so when prices come down and the XPRT or the new one prove themselves a bit I will trade up. I really, really like that style of phone, but I need one that works dependably, maybe they will have some fixes out or with Gingerbread it will get better.
I can tell you, the EVO is defintely a battery killer

but it works! So many new phones, easy to get overwhelmed