So far I have tested this software on the N70.

TomTom Mobile 5 (5.0.419) - Working
OGG Player 1.65 (unstable build) - Not Working (Hangs)
OGG Player 1.62 (stable build) - Not Working (Hangs)
SmartMovie 2.76 - Working
ProfiMail 2.32 - Working
AgileMessenger 2.64 - Working
FExplorer 1.13 - Working
SmartCom GPS 1.00a - Working
WorldMate 2.20 - Working
NetFront 3.2 - Working
Opera 8.00 - Woring (embedded)

My firmware is:
V 2.0536.0.2
12-09.05
RM-84

Please post your results with software, and your firmware and comments.