its how its currently done now, the next release will simply polish and make the thing more transparent.
on a linux with a recent build do file /bin/ls, do the same on a solaris x86 ver 10, they are identical but id you do an ldd on both they are looking for different libraries. lxrun then LAE simply does the library management so that any binary will find the needed libraries to run.
LAE is more a toy since you can grab any source, do a configure, make, make install natively in Solaris or in linux if you use the zone concept and put a native linux os under the solaris install. If you dont have the source and the binary is a must have program, the LAE will supply the needed libraries to keep on trucking.
I am just parroting info here so YMMV