If you really want to, you can pull the mms.apk from a CM7 7.0.3 build. You can have all the settings of CM7's SMS.
The only downside is that I have experienced it'll soft force-close only on MMS if you try to share a picture by the gallery or whatever. You have to manually hit settings, attach the file in the text box to send a MMS.
other than that, SMS works great.
Before you try it, mms.apk 7.1.0 doesn't work.
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