Fennec
From Openmoko
Fennec is a browser from mozilla for mobile devices. There's no offizial port for freerunner, but from angstrom are some packages.
The displaysize is very wrong, but it works and could show you something about speed..
ehm, and yes, it's written to make it possible. If it's usefull is the other question :)
opkg -force-depends install http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libc6_2.9-r32.0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libasound2_1.0.20-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libstdc++6_4.3.3-r5.1.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libgcc1_4.3.3-r5.1.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libgio-2.0-0_2.20.4-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/pango_1.24.4-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libgobject-2.0-0_2.20.4-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libgmodule-2.0-0_2.20.4-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libglib-2.0-0_2.20.4-r0.3_armv4t.ipk
opkg -force-depends install http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libsqlite3-0_3.6.13-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/libgthread-2.0-0_2.20.4-r0.3_armv4t.ipk http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv4t/base/fennec_0.9+1.0b2pre-r4.3_armv4t.ipk