Quoted from goo-inside-me
So what's up with the 2.3.4 GApps?
**(Please note, YMMV with all of the following information. Nandroid is your friend!)**
This is a tricky one. The problem here is that Google, unlike what they've done for every previous update to the G1, Nexus One, Nexus S, etc., decided to compile the Talk2.apk and libtalk_jni.so to be compatible only with the neon board, and ARM v7 (aka, the Nexus S), rather than every board, the actual Gingerbread API's, and ARM v6 and Tegra as well. So here's where this leaves us:
20110613: This package is designed for Android 2.3.4, and will not work on 2.3.3. It contains all of the applications updated for 2.3.4, but does not include the new Google Talk with video chat due to there being no compatible library available for non-ARM7 and non-neon board devices, from Google or another OEM. This package should work on all 2.3.4 ROMs, and has the latest Android Market update in it, which includes in-app purchase support. This package is listed in the above table, ROM Manager, and latest/7/universal. It should be used with ROMs such as CyanogenMod 7.1.0 (though at the time that I'm updating this, 20110307 is still listed in the ROM Manager manifest for the CyanogenMod Nightlies).