I just found out about this now! There is "another installer" available for the iPhone called Cydia.
From what I understood, it's got more features like download resume and search! It's a good alternative. You can get it by adding http://apptapp.saurik.com to your list of sources in installer. Once you refresh, it will be under the "System" category. BE PATIENT; It's a big install!
On a side note: I also read that Swirly MMS now allows you to receive MMS on the iPhone. I still didn't get it to send, but I haven't given up yet! More on this later...